Examples with solutions for Multiplication of Powers: System of equations with no solution

Exercise #1

Simplify the following equation:

58×53= 5^8\times5^3=

Video Solution

Step-by-Step Solution

To simplify the expression 58×535^8 \times 5^3, we will use the exponent rule which states that when multiplying powers with the same base, we add the exponents:

Step-by-step:

  • Identify the base and exponents: Here, the base is 55, and the exponents are 88 and 33.

  • Apply the multiplication of exponents rule: 58×53=58+35^8 \times 5^3 = 5^{8+3}.

Therefore, the correct answer is 58+3 5^{8+3} .

Answer

58+3 5^{8+3}

Exercise #2

Simplify the following equation:

34×35= 3^4\times3^5=

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given expression and its components.

  • Step 2: Apply the exponent multiplication formula.

  • Step 3: Simplify the result.

Now, let's work through each step:
Step 1: The given expression is 34×35 3^4 \times 3^5 . We recognize that the base is 3 and the exponents are 4 and 5.
Step 2: Apply the rule for multiplying powers with the same base: am×an=am+n a^m \times a^n = a^{m+n} . Using this formula, we add the exponents: 4+5 4 + 5 .
Step 3: Simplify the expression: 34+5=39 3^{4+5} = 3^9 .

Therefore, the simplified form of the expression is 34+5 3^{4+5} .

Answer

34+5 3^{4+5}

Exercise #3

Simplify the following equation:

22×23= 2^2\times2^3=

Video Solution

Step-by-Step Solution

To simplify the expression 22×23 2^2 \times 2^3 , we apply the rule for multiplying powers with the same base. According to this rule, when multiplying two exponential expressions that have the same base, we keep the base and add the exponents.

  • Step 1: Identify the base: In this problem, the base for both terms is 2.
  • Step 2: Apply the exponent multiplication rule: 22×23=22+3 2^2 \times 2^3 = 2^{2+3} .
  • Step 3: Simplify by adding the exponents: 22+3=25 2^{2+3} = 2^5 .

Thus, the simplified form of the expression 22×23 2^2 \times 2^3 is 25 2^{5} .

The correct choice from the provided options is: 22+3 2^{2+3} .

Answer

22+3 2^{2+3}

Exercise #4

Simplify the following equation:

9×99= 9\times9^9=

Video Solution

Step-by-Step Solution

To solve this problem, let's apply the multiplication of powers rule:

  • Step 1: Identify expression as 9×999 \times 9^9.
  • Step 2: Note that 99 can be expressed as 919^1.
  • Step 3: Apply the exponent rule: am×an=am+na^m \times a^n = a^{m+n}.

Now, we'll work through the calculation step-by-step:

Step 1: Rewrite 99 as 919^1. Thus, our expression becomes 91×999^1 \times 9^9.

Step 2: Use the exponent rule to combine: 91×99=91+99^1 \times 9^9 = 9^{1+9}.

Step 3: Simplify the exponent by adding: 91+9=9109^{1+9} = 9^{10}.

Therefore, the simplified form of the expression is 9109^{10}.

In terms of the answer choices, the correct answer is

91+9 9^{1+9}

Answer

91+9 9^{1+9}

Exercise #5

Simplify the following equation:

83×8= 8^3\times8=

Video Solution

Step-by-Step Solution

To simplify the expression 83×88^3 \times 8, we begin by identifying the implicit exponent for the standalone 8. Since there is no written exponent next to the second 8, we can assume it has an exponent of 1.

Thus, the expression can be written as:\br 83×818^3 \times 8^1.

Using the rule for multiplying powers with the same base, am×an=am+na^m \times a^n = a^{m+n}, we add the exponents:

  • Here, the base aa is 8.
  • The exponents are 3 and 1.

Therefore, 83×81=83+1=848^3 \times 8^1 = 8^{3+1} = 8^4.

Thus, the simplified expression is 84\mathbf{8^4}.

Consequently, the correct choice is 83+18^{3+1} .

Answer

83+1 8^{3+1}

Exercise #6

Simplify the following equation:

62×68= 6^2\times6^8=

Video Solution

Step-by-Step Solution

To simplify the expression given, 62×686^2 \times 6^8, we will use the property of exponents which states that the product of two powers with the same base is the base raised to the sum of the exponents.

Let's apply the rule:

  • The base in both powers is 66.

  • The exponents are 22 and 88.

  • According to the rule am×an=am+na^m \times a^n = a^{m+n}, we add the exponents; therefore, 62×68=62+86^2 \times 6^8 = 6^{2+8}.

  • Simplifying further, this becomes 6106^{10}.

Therefore, the simplified expression is 6106^{10}.

The solution to the given problem is 62+8 6^{2+8} .

Answer

62+8 6^{2+8}

Exercise #7

Simplify the following equation:

12×122= 12\times12^2=

Video Solution

Step-by-Step Solution

To simplify the equation 12×122 12 \times 12^2 , follow these steps:

  • Step 1: Recognize that 12 can be expressed as a power. Since 12=121 12 = 12^1 , rewrite the equation as 121×122 12^1 \times 12^2 .
  • Step 2: Apply the rule for multiplying powers with the same base, which states that am×an=am+n a^m \times a^n = a^{m+n} . In this case, this becomes 121+2 12^{1+2} .
  • Step 3: Simplify the expression by adding the exponents: 1+2=3 1 + 2 = 3 .

Thus, the simplified form of the expression is 123 12^3 .

Therefore, the correct answer choice is 121+2 12^{1+2} , which corresponds to choice 2.

Answer

121+2 12^{1+2}

Exercise #8

Simplify the following equation:

76×76= 7^6\times7^6=

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given expression.

  • Step 2: Recognize and apply the exponent multiplication rule.

  • Step 3: Simplify the expression by adding the exponents.

Now, let's work through each step:
Step 1: The expression given is 76×76 7^6 \times 7^6 .
Step 2: Since the bases are the same, apply the exponent rule: am×an=am+n a^m \times a^n = a^{m+n} .
Step 3: By adding the exponents, we have 6+6=12 6 + 6 = 12 .

Therefore, the simplified expression is 76+6 7^{6+6} or 712 7^{12} .

This corresponds to choice 2.

Thus, the solution to the problem is 76+6 7^{6+6} .

Answer

76+6 7^{6+6}

Exercise #9

Simplify the following equation:

45×4×42= 4^5\times4\times4^2=

Video Solution

Step-by-Step Solution

To solve this simplification problem, we will apply the rules of exponents. Our steps are as follows:

  • Step 1: Identify the exponents of the base. We have 454^5, 414^1 (since 44 is equivalent to 414^1), and 424^2.
  • Step 2: Use the property of exponents: am×an=am+na^m \times a^n = a^{m+n} to combine powers of the same base.
  • Step 3: Calculate the sum of the exponents: 5+1+2=85 + 1 + 2 = 8.
  • Step 4: Express the simplified result in the form of a single power of 4: 484^{8}.

Therefore, the expression 45×4×424^5 \times 4 \times 4^2 simplifies to 45+1+24^{5+1+2}, which further simplifies to 484^8.

Checking the multiple-choice options, the correct choice is: 45+1+2 4^{5+1+2} , aligning with our solution.

Answer

45+1+2 4^{5+1+2}

Exercise #10

Simplify the following equation:

53×56×52= 5^3\times5^6\times5^2=

Video Solution

Step-by-Step Solution

To solve the problem of simplifying the expression 53×56×52 5^3 \times 5^6 \times 5^2 , follow these steps:

  • Step 1: Understand that the expression involves multiplying powers with the same base.

  • Step 2: Apply the formula for multiplying powers: am×an=am+n a^m \times a^n = a^{m+n} .

  • Step 3: Combine the exponents by adding them together.

Now, let's work through these steps in detail:
Step 1: Recognize the base is 5, with exponents 3, 6, and 2.
Step 2: Since all terms have the base 5, use the formula for multiplying powers, resulting in a single term where the exponents are added: 53+6+2 5^{3+6+2} .
Step 3: Calculate the sum of the exponents: 3+6+2=11 3 + 6 + 2 = 11 .

Hence, the correct answer is 53+6+2 5^{3+6+2} which simplifies to 511 5^{11} .

Answer

53+6+2 5^{3+6+2}

Exercise #11

Simplify the following equation:

97×93×95= 9^7\times9^3\times9^5=

Video Solution

Step-by-Step Solution

To simplify the expression 97×93×95 9^7 \times 9^3 \times 9^5 , we will use the multiplication rule for exponents which applies to powers with the same base.

  • Step 1: Identify that all terms have the same base of 9.
  • Step 2: Add the exponents together since the bases are the same: 7+3+57 + 3 + 5.
  • Step 3: Perform the addition: 7+3+5=157 + 3 + 5 = 15.

This results in the expression simplifying to 97+3+5=915 9^{7+3+5} = 9^{15} .

Therefore, the expression 97×93×95 9^7 \times 9^3 \times 9^5 simplifies to 915 9^{15} .

The correct answer is choice (1): 97+3+5 9^{7+3+5} .

Answer

97+3+5 9^{7+3+5}

Exercise #12

Simplify the following equation:

112×113×114= 11^2\times11^3\times11^4=

Video Solution

Step-by-Step Solution

To solve this problem, we will simplify the expression 112×113×114 11^2 \times 11^3 \times 11^4 by using the multiplication rule of exponents.

  • Step 1: Identify that all the bases are the same, which is 11.

  • Step 2: Apply the exponent multiplication rule: am×an=am+n a^m \times a^n = a^{m+n} .

Now, apply this rule:

112×113×114=112+3+4 11^2 \times 11^3 \times 11^4 = 11^{2+3+4}

Calculate the sum of the exponents:

2+3+4=9 2 + 3 + 4 = 9

Thus, the expression simplifies to:

119 11^9

Therefore, the simplified version of the expression is:

112+3+4=119 11^{2+3+4} = 11^9

Upon reviewing the choices provided, the correct choice for the simplified expression is choice 3: 112+3+4 11^{2+3+4} .

Answer

112+3+4 11^{2+3+4}

Exercise #13

Simplify the following equation:

21×22×23= 2^1\times2^2\times2^3=

Video Solution

Step-by-Step Solution

To simplify the expression 21×22×232^1 \times 2^2 \times 2^3, we'll apply the rule for multiplying powers with the same base:

  • When multiplying powers with the same base, you add the exponents.

Let's apply this to our expression:

21×22×23=21+2+32^1 \times 2^2 \times 2^3 = 2^{1+2+3}

Now, calculate the sum of the exponents: 1+2+3=61 + 2 + 3 = 6.

Thus, the expression simplifies to

262^6.

By comparing it with the given choices, the correct simplified form, 21+2+32^{1+2+3}, corresponds to choice 2:
21+2+32^{1+2+3}.

Answer

21+2+3 2^{1+2+3}

Exercise #14

Reduce the following equation:

63×64×67= 6^3\times6^{-4}\times6^7=

Step-by-Step Solution

To solve the expression 63×64×67 6^3 \times 6^{-4} \times 6^7 , we need to apply the rules of exponents, specifically the multiplication of powers. When we multiply powers with the same base, we add their exponents.

First, let's identify the base and the exponents in the expression:

  • The base is 6.

  • The exponents are 3, -4, and 7.

Using the exponent multiplication rule, we sum the exponents:

63×64×67=63+(4)+7 6^3 \times 6^{-4} \times 6^7= 6^{3 + (-4) + 7}

So, the solution is:

634+7 6^{3-4+7}

Answer

634+7 6^{3-4+7}

Exercise #15

Reduce the following equation:

24×22×23= 2^4\times2^{-2}\times2^3=

Video Solution

Step-by-Step Solution

To solve this problem, we'll apply the rule for multiplying powers with the same base:

  • Step 1: Recognize that all terms share the base 2.

  • Step 2: Apply the multiplication rule for exponents: 2m×2n=2m+n 2^m \times 2^n = 2^{m+n} .

  • Step 3: Combine the exponents: 24×22×23 2^{4} \times 2^{-2} \times 2^{3} becomes 24+(2)+3 2^{4 + (-2) + 3} .

According to the provided choices, the reduced expression using the property is 242+3 2^{4-2+3} , which aligns with choice 1.

Answer

242+3 2^{4-2+3}

Exercise #16

Simplify the following equation:

42×44= 4^{-2}\times4^{-4}=

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify that both terms have the same base, which is 4.

  • Step 2: Use the exponent rule for multiplication of powers with the same base: am×an=am+n a^m \times a^n = a^{m+n} .

  • Step 3: Add the exponents 2-2 and 4-4.

Now, let's work through these steps:

Step 1: We have the expression 42×444^{-2} \times 4^{-4}.

Step 2: Applying the exponent rule, we combine the exponents:

42×44=42+(4)4^{-2} \times 4^{-4} = 4^{-2 + (-4)}

Therefore, our answer is 4244^{-2-4}, which matches choice 4.

Answer

424 4^{-2-4}

Exercise #17

Simplify the following equation:

26×23= 2^6\times2^{-3}=

Video Solution

Step-by-Step Solution

To solve the problem of simplifying 26×23 2^6 \times 2^{-3} , we follow these steps:

  • Identify the problem involves multiplying powers with the same base, 2 2 .

  • Use the formula am×an=am+n a^m \times a^n = a^{m+n} to combine the exponents.

  • Add the exponents: 6+(3) 6 + (-3) .

Applying the exponent rule, we calculate:

Step 1: Given expression is 26×23 2^6 \times 2^{-3} .

Step 2: According to the property of exponents, add the exponents: 6+(3) 6 + (-3) .

Step 3: Simplify the exponent: 63=3 6 - 3 = 3 .

Thus, 263 2^{6-3} .

Answer

263 2^{6-3}

Exercise #18

Insert the corresponding expression:

84×8×81= 8^4\times8\times8^{-1}=

Video Solution

Step-by-Step Solution

To solve this problem, we will apply the multiplication of powers rule which states that when multiplying powers with the same base, we add their exponents.

Let's begin by analyzing the given expression: 84×8×81 8^4 \times 8 \times 8^{-1} .

Each term has the base 8, allowing us to use the exponent rule directly:

  • First, recognize the exponents for each term: the first term 84 8^4 has an exponent of 4, the second term 8 8 is equivalent to 81 8^1 , and the third term 81 8^{-1} has an exponent of -1.
  • Then, apply the formula by adding the exponents: 4+11 4 + 1 - 1 .

The resulting expression for the exponent is 84+11 8^{4+1-1} .

Therefore, the corresponding expression to the original product is 84+11 8^{4+1-1} .

Answer

84+11 8^{4+1-1}

Exercise #19

Insert the corresponding expression:

72×73×75= 7^{-2}\times7^{-3}\times7^5=

Video Solution

Step-by-Step Solution

To solve for the expression 72×73×75 7^{-2}\times7^{-3}\times7^5 , we will apply the exponent rule where we add the exponents when multiplying powers with the same base.

Step 1: Identify the exponents in the expression:

  • First term has exponent 2-2
  • Second term has exponent 3-3
  • Third term has exponent 55

Step 2: Use the exponent rule am×an=am+n a^m \times a^n = a^{m+n}

We add the exponents: 2+(3)+5-2 + (-3) + 5.

Step 3: Calculate the sum of the exponents:

2+(3)+5=23+5=5+5=0-2 + (-3) + 5 = -2 - 3 + 5 = -5 + 5 = 0

Therefore, the simplified expression is 70 7^0 .

However, the task specifically asks us to represent the step incorporating the exponent change. In this step, it should reflect as:

723+5 7^{-2-3+5} , indicating the addition process before simplification to 0. Let's consider the provided choices:

The correct choice from the list provided that matches our transformation is:

  • Choice 4: 723+5 7^{-2-3+5}

Hence, the expression 72×73×75 7^{-2}\times7^{-3}\times7^5 can be represented by the expression 723+5 7^{-2-3+5} .

Therefore, the correct representation is 723+5 7^{-2-3+5} .

Answer

723+5 7^{-2-3+5}

Exercise #20

Reduce the following equation:

t7×t2= t^7\times t^2=

Video Solution

Step-by-Step Solution

To solve the problem of simplifying t7×t2 t^7 \times t^2 , we follow these steps:

  • Step 1: Identify the base and the exponents. Here, the base is t t , the first exponent is 7, and the second exponent is 2.
  • Step 2: Apply the exponent rule for multiplying powers with the same base, which states am×an=am+n a^m \times a^n = a^{m+n} .
  • Step 3: Add the exponents: 7+2=9 7 + 2 = 9 .
  • Step 4: Write the simplified expression: t9 t^9 .

Therefore, after applying the exponent rule, the simplified form of the expression is t9 t^9 .

The correct choice among the given options is not specifically listed, but the simplification corresponds to t7+2 t^{7+2} before explicitly adding to get t9 t^9 .

Answer

t7+2 t^{7+2}