Examples with solutions for Power of a Product: Inverse formula

Exercise #1

Insert the corresponding expression:

87×107= 8^7\times10^7=

Video Solution

Step-by-Step Solution

To solve the expression 87×107 8^7 \times 10^7 , we can use the power of a product rule, which states that am×bm=(a×b)m a^m \times b^m = (a \times b)^m . Here,a=8 a = 8 and b=10 b = 10 , and both are raised to the same power m=7 m = 7 .

Following these steps:

  • Identify the base numbers and the common exponent: Here, the base numbers are 8 8 and 10 10 , and the common exponent is 7 7 .

  • Apply the power of a product rule: Instead of multiplying 87 8^7 and 107 10^7 directly, we apply the rule to get (8×10)7 (8 \times 10)^7 .

  • This simplifies to (80)7 (80)^7 .

Thus, the rewritten expression is (8×10)7 \left(8 \times 10\right)^7 .

Answer

(8×10)7 \left(8\times10\right)^7

Exercise #2

Insert the corresponding expression:

116×46= 11^6\times4^6=

Video Solution

Step-by-Step Solution

To solve the given expression, we need to apply the rule known as the Power of a Product. This rule states that the product of two numbers raised to the same power can be expressed as the product of those numbers raised to that power. Mathematically, it's represented as: an×bn=(a×b)n a^n \times b^n = (a \times b)^n .


In our given problem, we have 116×46 11^6 \times 4^6 .

  • Here, the base numbers are 11 and 4, and both are raised to the 6th power.
  • According to the Power of a Product rule, we can combine these into a single expression: (11×4)6 (11 \times 4)^6 .

Thus, the expression 116×46 11^6 \times 4^6 can be rewritten as (11×4)6 (11 \times 4)^6 . This is the simplified or equivalent expression.

Answer

(11×4)6 \left(11\times4\right)^6

Exercise #3

Insert the corresponding expression:

23×43= 2^3\times4^3=

Video Solution

Step-by-Step Solution

We are given the expression: 23×43 2^3 \times 4^3 and need to express it as a single term using the power of a product rule.

The power of a product rule states that for any non-zero numbers a a and b b , and an integer n n , (a×b)n=an×bn (a \times b)^n = a^n \times b^n .

To apply the inverse formula, which is converting two separate powers into a product raised to a power, we look for terms that can be combined under a single exponent. Observe that:

  • Both terms 23 2^3 and 43 4^3 have the same exponent.

  • This allows us to combine them into a single expression: (2×4)3 (2 \times 4)^3 .

Therefore, according to the power of a product rule applied inversely, the expression 23×43 2^3 \times 4^3 can be rewritten as (2×4)3 (2 \times 4)^3 .

Answer

(2×4)3 \left(2\times4\right)^3

Exercise #4

Insert the corresponding expression:

85×95= 8^5\times9^5=

Video Solution

Step-by-Step Solution

The problem given is to simplify the expression 85×95 8^5 \times 9^5 . This problem can be solved by applying the exponent rules, specifically the Power of a Product rule.

Step-by-step solution:

  • According to the Power of a Product rule, when two expressions with the same exponent are multiplied, the product can be written as a single power expression:
    an×bn=(a×b)n a^n \times b^n = (a \times b)^n .
  • Using this rule, we can rewrite the given expression 85×95 8^5 \times 9^5 as a single power:
    (8×9)5 (8 \times 9)^5 .
  • Therefore, the expression simplifies to:
    (72)5 (72)^5 .
  • We have represented 85×95 8^5 \times 9^5 as (72)5 (72)^5 , which is its corresponding expression according to the Power of a Product rule.

By recognizing that 85×95 8^5 \times 9^5 can be expressed as a single power of 72 72 , we confirm that the problem demonstrates the application of the Power of a Product rule. All provided conversions of this expression are mathematically correct, warranting the conclusion "All answers are correct".

Answer

All answers are correct

Exercise #5

Insert the corresponding expression:

34×44= 3^4\times4^4=

Video Solution

Step-by-Step Solution

To solve the given expression, we need to apply the 'Power of a Product' rule in exponentiation. This rule states that for any numbers a a and b b :

an×bn=(a×b)n a^n \times b^n = (a \times b)^n

In this problem, the base numbers are 3 and 4, and the exponent is 4. Therefore, we can rewrite the expression 34×44 3^4 \times 4^4 using the power of a product rule:

  • Identify the bases: 3 and 4.

  • Identify the common exponent: 4.

  • Apply the rule: (3×4)4 (3 \times 4)^4

Thus, the expression 34×44 3^4 \times 4^4 can be rewritten as (3×4)4 (3 \times 4)^4 .

Answer

(3×4)4 \left(3\times4\right)^4

Exercise #6

Insert the corresponding expression:

2010×410×210= 20^{10}\times4^{10}\times2^{10}=

Video Solution

Step-by-Step Solution

To solve the expression 2010×410×210 20^{10} \times 4^{10} \times 2^{10} , we can apply the Power of a Product rule for exponents. According to this rule, for any numbers a a , b b , and c c raised to the power of n n , we have:

an×bn×cn=(a×b×c)n a^n \times b^n \times c^n = (a \times b \times c)^n

In this case, we have:

  • a=20 a = 20

  • b=4 b = 4

  • c=2 c = 2 ,

  • n=10 n = 10 .

Thus, we can write:

2010×410×210=(20×4×2)10 20^{10} \times 4^{10} \times 2^{10} = (20 \times 4 \times 2)^{10}

Answer

(20×4×2)10 \left(20\times4\times2\right)^{10}

Exercise #7

Insert the corresponding expression:

29×49×79= 2^9\times4^9\times7^9=

Video Solution

Step-by-Step Solution

The given expression is 29×49×79 2^9 \times 4^9 \times 7^9 .

We need to simplify this expression by using the exponent rule for the power of a product. The rule states that (a×b×c)n=an×bn×cn (a \times b \times c)^n = a^n \times b^n \times c^n , which can be inverted to simplify a product of terms with the same exponent.

Thus, the expression 29×49×79 2^9 \times 4^9 \times 7^9 can be rewritten as (2×4×7)9 (2 \times 4 \times 7)^9 .

Breaking it down:

  • Identify the common exponent, which is 9 9 .
  • Combine the bases under a single power:
    • The bases are 2,4, 2, 4, and 7 7 .
  • Apply the exponent rule: 29×49×79=(2×4×7)9 2^9 \times 4^9 \times 7^9 = (2 \times 4 \times 7)^9 .

Therefore, the corresponding expression is (2×4×7)9 \left(2\times4\times7\right)^9 .

Answer

(2×4×7)9 \left(2\times4\times7\right)^9

Exercise #8

Insert the corresponding expression:

87×107×167= 8^7\times10^7\times16^7=

Video Solution

Step-by-Step Solution

The given expression is 87×107×167 8^7\times10^7\times16^7 . We need to apply the power of a product rule for exponents. This rule states that for any numbers aa, bb, and cc, if they have the same exponent nn, then an×bn×cn=(a×b×c)n a^n \times b^n \times c^n = (a\times b \times c)^n .

In this problem, we recognize that 8, 10, and 16 all have the same exponent of 7, thus, we can apply the rule directly:

  • 87×107×167 8^7 \times 10^7 \times 16^7
  • Applying the power of a product rule:
  • (8×10×16)7 (8 \times 10 \times 16)^7

This simplified form matches the pattern we recognize from the power of a product rule, verifying that (8×10×16)7 (8\times10\times16)^7 is indeed the correct transformation of the original expression 87×107×167 8^7\times10^7\times16^7 , thereby confirming our answer is correct.

Answer

(8×10×16)7 \left(8\times10\times16\right)^7

Exercise #9

Insert the corresponding expression:

99×89×29= 9^9\times8^9\times2^9=

Video Solution

Step-by-Step Solution

To solve the expression 99×89×29 9^9 \times 8^9 \times 2^9 , we will apply the "Power of a Product" rule in the exponent rules. This rule states that if you have a product of terms all raised to the same exponent, it can be rewritten as the product itself raised to that exponent. The formula is given by:

  • (a×b×c)n=an×bn×cn (a \times b \times c)^n = a^n \times b^n \times c^n

In our problem, we can identify the terms as:

  • a=9 a = 9

  • b=8 b = 8

  • c=2 c = 2

  • n=9 n = 9

Applying the formula, we can convert the product of powers into a single power:

99×89×29=(9×8×2)9 9^9 \times 8^9 \times 2^9 = (9 \times 8 \times 2)^9

Answer

(9×8×2)9 \left(9\times8\times2\right)^9

Exercise #10

Insert the corresponding expression:

58×88×108= 5^8\times8^8\times10^8=

Video Solution

Step-by-Step Solution

The goal is to apply the power of a product rule by transforming the expression 58×88×108 5^8 \times 8^8 \times 10^8 into the form (a×b×c)n (a \times b \times c)^n .

Let's begin by identifying the terms involved:

  • The expression consists of three separate terms, each raised to the 8th power: 58 5^8 , 88 8^8 , and 108 10^8 .

According to the power of a product rule, (a×b×c)n=an×bn×cn (a \times b \times c)^n = a^n \times b^n \times c^n . Therefore, given that the exponents are the same, n=8 n = 8 , we can reverse this process.

  • The original expression is 58×88×108 5^8 \times 8^8 \times 10^8 .

We can consolidate this into a single term by combining the bases under the same exponent:

Thus, 58×88×108=(5×8×10)8 5^8 \times 8^8 \times 10^8 = (5 \times 8 \times 10)^8 .

Therefore, the corresponding expression is:

(5×8×10)8 \left(5\times8\times10\right)^8

Answer

(5×8×10)8 \left(5\times8\times10\right)^8

Exercise #11

Insert the corresponding expression:

5×35×115= 5\times3^5\times11^5=

Video Solution

Step-by-Step Solution

To solve the expression 5×35×115 5\times3^5\times11^5 , we can apply the rule of exponents known as the Power of a Product rule. This rule states that for any integers a a , b b , and n n , (a×b)n=an×bn (a\times b)^n = a^n \times b^n .

Step 1: Analyze the expression
The expression we have is 5×35×115 5\times3^5\times11^5 .

Step 2: Apply the Power of a Product rule
Notice that both 3 and 11 are raised to the power of 5. We can use the inverse of the Power of a Product formula to combine these terms:

  • 35×115 3^5 \times 11^5 can be written as(3×11)5 (3 \times 11)^5


Step 3: Rewrite the expression
Therefore, the expression 5×35×115 5\times3^5\times11^5 becomes 5×(3×11)5 5\times(3\times11)^5 .

By applying the Power of a Product rule, we have determined that the equivalent expression for the given problem is 5×(3×11)5 5\times(3\times11)^5 .

Answer

5×(3×11)5 5\times\left(3\times11\right)^5

Exercise #12

Insert the corresponding expression:

711×311×8= 7^{11}\times3^{11}\times8=

Step-by-Step Solution

To solve the given expression, we need to apply the power of a product rule from exponent rules. This rule states that when you have a product of numbers raised to the same power, you can combine them under one exponent. The formula is as follows:

an×bn=(a×b)n a^n \times b^n = (a\times b)^n

In our problem, we are given:
711×311×8 7^{11}\times3^{11}\times8

We notice that 711 7^{11} and 311 3^{11} are raised to the same power, 11. Therefore, according to the power of a product rule, we can combine them:

  • Identify the terms with the same power: 711 7^{11} and 311 3^{11} .

  • Combine the terms under a single exponent: (7×3)11 (7 \times 3)^{11} .

This means:

711×311=(7×3)11 7^{11}\times3^{11} = (7\times3)^{11}

Thus, our simplified expression now looks like this:

(7×3)11×8 (7\times3)^{11}\times8

Answer

(7×3)11×8 \left(7\times3\right)^{11}\times8

Exercise #13

Insert the corresponding expression:

55×65= 5^5\times6^5=

Video Solution

Answer

a'+b' are correct

Exercise #14

Insert the corresponding expression:

116×106×126= 11^6\times10^6\times12^6=

Video Solution

Answer

All answers are correct

Exercise #15

Insert the corresponding expression:

911×711×611= 9^{11}\times7^{11}\times6^{11}=

Video Solution

Answer

All answers are correct

Exercise #16

Reduce the following equation:

27×37×107= 2^7\times3^7\times10^7=

Video Solution

Answer

All answers are correct

Exercise #17

Insert the corresponding expression:

32×y2= 3^2\times y^2=

Video Solution

Answer

(3×y)2 \left(3\times y\right)^2

Exercise #18

Insert the corresponding expression:

3x×7x×5x= 3^x\times7^x\times5^x=

Video Solution

Answer

(3×7×5)x \left(3\times7\times5\right)^x

Exercise #19

Insert the corresponding expression:

43×x3×63= 4^3\times x^3\times6^3=

Video Solution

Answer

(4×x×6)3 \left(4\times x\times6\right)^3

Exercise #20

Insert the corresponding expression:

4a×8a×2a= 4^a\times8^a\times2^a=

Video Solution

Answer

(4×8×2)a \left(4\times8\times2\right)^a