Question
Simplify. \[ \left(\frac{2 y^{-4}}{y^{4}}\right)^{2} \] Write your answer using only positive exponents
Ask by Turner Salazar. in the United States
Feb 27,2025
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Answer
The simplified expression is \( \frac{4}{y^{16}} \).
Solution
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The Deep Dive
To simplify the expression \(\left(\frac{2 y^{-4}}{y^{4}}\right)^{2}\), first simplify the fraction inside the parentheses: \[ \frac{2 y^{-4}}{y^{4}} = 2 y^{-4 - 4} = 2 y^{-8} \] Now, we raise this result to the power of 2: \[ (2 y^{-8})^{2} = 2^{2} (y^{-8})^{2} = 4 y^{-16} \] To express the final answer using only positive exponents, we write: \[ 4 y^{-16} = \frac{4}{y^{16}} \] Thus, the simplified expression is: \[ \frac{4}{y^{16}} \]