Question

Alguem sabe a resposta por favor de produtos notaveis (3y+3)²+(6y-4)²

Answer 1

$(3y+3)^2+(6y-4)^2\to\\\\\\ (3y+3)(3y+3)+(6y-4)(6y-4)\to \\ \\\\(9y^2+18y+9)+(36y^2-48y+16)\to \\\\\\ 9y^2+18y+9+36y^2-48y+16\to \\\\\\ \large\boxed{45y^2-30y+25}$