Question

find the product pleslase

Answer 1

1--->9/16x²-15/12xy+25/36y

2--->1/4y⁴-1/3y³+1/9y²

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Answer 2

Solution ๏๏๏๏
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$1) \\ = \: \: ( \frac{3}{4} x - \frac{5}{6} y) {}^{2} \\ \\ = {( \frac{3}{4}x )}^{2} + {( \frac{5}{6} y)}^{2} - 2. \frac{ 3}{4} x. \frac{5}{6} y \\ \\ = \frac{9}{16} {x}^{2} + \frac{25}{36} {y}^{2} - \frac{5}{4} xy$

$2) \\ = ( \frac{1}{2} y {}^{2} - \frac{1}{3} y) {}^{2} \\ \\ = ( \frac{1}{2} y {}^{2} ) {}^{2} + ( \frac{1}{3} y) {}^{2} - 2. \frac{1}{2} y {}^{2} . \frac{1}{3} y \\ \\ = \frac{1}{4} {y}^{4} + \frac{1}{9} {y}^{2} - \frac{1}{3} {y}^{3}$