A)x(y+z)-2y-2z б)a(b+c)-b-c в)a(b-c)-4b+4c г)a(a-b)-ac+bc

Question

A)x(y+z)-2y-2z
б)a(b+c)-b-c
в)a(b-c)-4b+4c
г)a(a-b)-ac+bc

Answer 1

1) x(y+z)-2y-2z=x(y+z)-2(y+z)=(y+z)(x-2)