Question

Выполните действия (t-3)*(t+5) ; (4x-7)*(3x-8)

Answer 1

(t-3)(t+5)=t²+5t-3t-15=
=t²+2t-15

(4x-7)(3x-8)=12x²-32x-21x+56=12x²-53x+56