Question

Aratati ca (x+2) la puterea3 -x - 2 = (x+1)(x+2)(x+3)
Cu rezolvare completa va rog

Answer 1

$(x+2)^{3}-(x+2)=(x+1)(x+2)(x+3) \\ (x+2)[ (x+2)^{2} -1]=(x+1)(x+2)(x+3) \\ (x+2-1)(x+2+1)=(x+1)(x+3) \\ (x+1)(x+3)= (x+1)(x+3)$