How do I find xy^-2(xy^2 - 4y^4) ??

1 answer

To simplify xy^-2(xy^2 - 4y^4), you would write it as fraction (not forgetting the parentheses at the right places):

xy^-2(xy^2 - 4y^4)
= (x/y²)(xy^2 - 4y^4)
= (x/y²) * y&sup2(x-4y²)
= x * (x-4y²)
= x²-4xy²
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