1)(x-4)(x+7) 2)(2y-8)(7-y²)

Question

1)(x-4)(x+7)
2)(2y-8)(7-y²)

Comments

помогие плс

Answer 1

1)(x-4)(x+7)=x^2-4x+7x-28=x^2+3x-28
2)(2y-8)(7-y^2)=14y-56-2y^3+8y^2