Question

(x+1)(x+2)+4(x+1)²-4x(x+1)

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

Scoateti factorul comun, am uitat cu se mai scoate, ma putes.ti ajuta va rog?

Answer 1

(x+1)(x+2)+4(x+1)²-4x(x+1)= (x+1)(x+2+4(x+1)-4x)=(x+1)(x+2+4x+4-4x)=(x+1)(x+4)

(x+2)(3x-7)-(x+2)(4x-2)+3(x+2)= (x+2)(3x-7-4x+2+x+2)=(x+2)·(-3)