Question

Please Help it's urgent

Answer 1

$= ( \frac{3}{4 } {x}^{2} + \frac{2}{5} {y}^{2} )$

$= ( \frac{3}{4} {x}^{2} ) ^{2} + (\frac{2}{5} {y}^{2} ) ^{2} + 2 \times \frac{3}{4} {x}^{2} \times \frac{2}{5} {y}^{2}$

$= \frac{9}{10} {x}^{2} + \frac{4}{25} {y}^{2} + \frac{3}{5} {x}^{2} {y}^{2}$