Question
Simplify each expression. Assume that all variables represent nonzero real numbers. See Examples $1-8 .$$$\left(y^{-2} z^{4}\right)^{-3}$$
Step 1
So, we multiply the exponents inside the parentheses by the exponent outside the parentheses. $$ (y^{-2} z^{4})^{-3} = y^{-2 \cdot -3} z^{4 \cdot -3} $$ Show more…
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