因式分解X^3+2X-3 X的三次方加2X减3因式分解

2025-12-15 06:08:01
推荐回答(1个)
回答1:

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