С ть вираз: (2х + 7у) квадрат – (х – 3у)(5х + 4у) даю 50 б

SSex I'm a wхочу I can't like a fool sitting on the internet and can't understand how it goes in my life and why I can't I don't want to be with him near you and be near you and be near you and be near you and be with you and be around you and be around you.

(2x+7y) -(x-3y)(5x+4y)

2x+7y-5x( в квадрате) +11xy+12y( в квадрате)