Exponent Rules Practice Problems - Master Powers & Bases

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

• Step 1: Identify the provided expression: $(9^2)^4$.

• Step 2: Apply the power of a power rule for exponents.

• Step 3: Simplify by multiplying the exponents.

Now, let's work through each step:

Step 1: We have the expression $(9^2)^4$.

Step 2: Using the power of a power rule ($(a^m)^n = a^{m \cdot n}$), apply it to the expression:

$(9^2)^4 = 9^{2 \times 4}$

Step 3: Simplify by calculating the product of the exponents:

$2 \times 4 = 8$

Therefore, $(9^2)^4 = 9^8$.

The correct expression corresponding to the given problem is $\boxed{9^8}$.

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

• Identify the given information and relevant exponent rules.

• Apply the quotient property of exponents.

• Simplify the expression.

Now, let's work through each step:
Step 1: The problem gives us the expression $\frac{6^7}{6^4}$. The base is 6, and the exponents are 7 and 4, respectively.
Step 2: According to the rule of exponents, when dividing powers with the same base, we subtract the exponents: $\frac{a^m}{a^n} = a^{m-n}$ In this case, $a = 6$, $m = 7$, and $n = 4$.
Step 3: Applying this rule gives us: $\frac{6^7}{6^4} = 6^{7 - 4} = 6^3$

Therefore, the solution to the problem is $6^3$.

To solve this problem, we need to simplify the expression $\frac{b^5}{b^2}$ using the rules of exponents.

• Step 1: Identify the rule to apply: For any positive integer exponents $m$ and $n$, the rule $\frac{a^m}{a^n} = a^{m-n}$ applies when dividing terms with the same base. In this expression, our base is $b$.

• Step 2: Apply the rule: Substitute the given exponents into the formula: $\frac{b^5}{b^2} = b^{5-2}$

• Step 3: Perform the subtraction: Calculate the exponent $5 - 2$: $b^{5-2} = b^3$

Therefore, the solution to the expression $\frac{b^5}{b^2}$ is $b^3$.

To solve the given expression $\frac{x^6}{x^4}$, we will follow these steps:

• Step 1: Apply the quotient rule for exponents
• Step 2: Simplify the expression
• Step 3: Verify by comparing with the answer choices

Now, let's work through each step:

Step 1: Apply the quotient rule for exponents. This rule states that $\frac{a^m}{a^n} = a^{m-n}$ when dividing powers with the same base.

Step 2: We have $\frac{x^6}{x^4}$. According to the rule:

$\frac{x^6}{x^4} = x^{6-4} = x^2$

Step 3: Verify by comparing with the answer choices:

• Choice 1: $x^{-2}$ – Incorrect as it implies the exponents were added incorrectly.
• Choice 2: $x^2$ – This matches our result.
• Choice 3: $x^{10}$ – Incorrect as it implies the exponents were added instead of subtracted.
• Choice 4: $x^{\frac{2}{3}}$ – Incorrect as it does not match the calculation based on integer exponents.

Therefore, the correct choice is $x^2$, which is Choice 2.

To solve the expression $\frac{y^9}{y^3}$, we will apply the rules of exponents, specifically the power of division rule, which states that when you divide like bases, you subtract the exponents.

Here are the steps to arrive at the solution:

• Step 1: Identify and write down the expression: $\frac{y^9}{y^3}$.

• Step 2: Apply the division rule of exponents, which is $\frac{a^m}{a^n} = a^{m-n}$, for any non-zero base $a$.

• Step 3: Using the division rule, subtract the exponent in the denominator from the exponent in the numerator:$y^{9-3}$

• Step 4: Calculate the exponent: $9 - 3 = 6$

• Step 5: Write down the simplified expression:$y^6$

Therefore, the expression $\frac{y^9}{y^3}$ simplifies to $y^6$.