Question

(1/4x-2/3y)(1/4x+2/3y)
Помогите пж пж пж добуток многочлена

Answer 1

$( \frac{1}{4} x - \frac{2}{3} y)( \frac{1}{4} x + \frac{2}{3} y) = ( \frac{1}{4} x) {}^{2} - ( \frac{2}{3} y) {}^{2} = \frac{1}{16} x {}^{2} - \frac{4}{9} y {}^{2}$

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