Question

Номер 7 с решением даю 30 баллов

Answer 1

$(\frac{y-x}{4x}) ^{2}*( \frac{16x}{x-y}+ \frac{16x}{y})= \frac{(y-x)^{2}} {16x^{2}}* \frac{1 6xy+16x^{2}-16xy} {y(x-y)}= \frac{(x-y)^{2}} {16x^{2}}* \frac{16x^{2}} {y(x-y)}= \frac{x-y}{y}$