Question

Descopuneti in factori :

b) -3a( x + 3 ) + 6b( x + 3)
d) (x + 2)(x - 3) + (x + 2)(2x + 1)
f) (x + 1)(5x + 6) - (5x -7)(x + 1)

Va rog repede.

Answer 1

b) (x+3)*(-3a+6b)
d)(x+2)*(x-3+2x+1)
(x+2)*(3x-2)
f)(x+1)*(5x+6-5x+7)
(x+1)*13

Am dat factor comun elementul care se repeta, apoi am adunat/scazut daca era cazul. Sper ca ai inteles!