Questions: Simplify and rewrite answer using only positive exponents.
(x^(-2) y^2 z)^3
Select one:
a. x^(-6)+y^6+z^3
b. x^l y^5 z^4
c. -x^6 y^6 z^3
d. (y^6 z^3)/(x^6)
Transcript text: Simplify and rewrite answer using only positive exponents.
\[
\left(x^{-2} y^{2} z\right)^{3}
\]
Select one:
a. $x^{-6}+y^{6}+z^{3}$
b. $x^{l} y^{5} z^{4}$
c. $-x^{6} y^{6} z^{3}$
d. $\frac{y^{6} z^{3}}{x^{6}}$
Next page
Solution
Solution Steps
To simplify the given expression \(\left(x^{-2} y^{2} z\right)^{3}\) and rewrite it using only positive exponents, we need to apply the power rule \((a^m)^n = a^{m \cdot n}\) to each term inside the parentheses. Then, we will ensure all exponents are positive.
Step 1: Apply the Power Rule
The given expression is:
\[
\left(x^{-2} y^{2} z\right)^{3}
\]
We need to apply the power rule \((a^m)^n = a^{mn}\) to each term inside the parentheses.
Step 2: Simplify Each Term
Applying the power rule to each term:
\[
(x^{-2})^3 = x^{-2 \cdot 3} = x^{-6}
\]
\[
(y^{2})^3 = y^{2 \cdot 3} = y^{6}
\]
\[
(z)^3 = z^{1 \cdot 3} = z^{3}
\]
Step 3: Combine the Simplified Terms
Combining the simplified terms, we get:
\[
x^{-6} y^{6} z^{3}
\]
Step 4: Rewrite Using Only Positive Exponents
To rewrite the expression using only positive exponents, we move \(x^{-6}\) to the denominator:
\[
\frac{y^{6} z^{3}}{x^{6}}
\]
Final Answer
The correct answer is:
\[
\boxed{\frac{y^{6} z^{3}}{x^{6}}}
\]