Question

DESENVOLVA O PRODUTO :$( \frac{y ^{2} }{3} - \frac{x}{4} ^{2}) ^{2}$

Answer 1

$( \frac{y ^2}{3}-\frac{x^2}{4})^2=$

$( \frac{y^2}{3} )^2-2( \frac{y^2}{3} )( \frac{x^2}{2} )+( \frac{x^2}{2} )^2=$

$\frac{y^4}{3^2} -\frac{2x^2y^2}{6} +\frac{x^4}{4}$