Question

Срочно $frac{x^2+2xy+y^2}{a^2-b^2}$ : $frac{x+y}{a+b}$

Answer 1

$frac{x {}^{2} + 2xy + y {}^{2} }{a {}^{2} - b {}^{2} } div frac{x + y}{a + b} = \ frac{(x + y) {}^{2} }{(a - b)(a + b)} times frac{a + b}{x + y} = \ frac{x + y}{a - b}$