x∧3（即x的三次方）－3x＋2因式分解,

Question

如题所述

Answer 1

x^3-3x+2
=(x^3-1)-3(x-1)
=(x-1)(x^2+x+1-3)
=(x-1)(x^2+x-2)
=(x-1)(x+2)(x-1)