Question

Fatore:

2x²(x+y) - y (x+y)²

Answer 1

(x+y)[ 2x² - y(x +y)] =  (x + y)(2x² -xy - y²)=(x +y)[x² - y² + x² - xy]
⇒(x + y)[(x + y)(x - y) +x(x - y)] ⇒(x + y){(x - y)[(x + y) +x]}
⇒ (x + y)(x - y)(2x + y)