Question

(x+y)2-(x-y)2/x сократить дробь

Answer 1

(x+y)^2-(x-y)^2/x = x^2+2xy+y^2-x^2+2xy-y^2/x = 4xy/x = 4y

Answer 2

$frac{(x+y)2-(x-y)2}{x}=frac{2((x+y)-(x-y))}{x}=frac{2(x+y-x+y)}{x}=frac{2*2y}{x}=frac{4y}{x}$