(x-3)(x²-2)-(x-5)(3-x)-2(3-x)²

来源：学生作业帮助网编辑：六六作业网时间：2024/11/17 12:42:29

(x-3)(x²-2)-(x-5)(3-x)-2(3-x)²(x-3)(x²-2)-(x-5)(3-x)-2(3-x)²(x-3)(x²-2)-(x-

(x-3)(x²-2)-(x-5)(3-x)-2(3-x)²
(x-3)(x²-2)-(x-5)(3-x)-2(3-x)²

(x-3)(x²-2)-(x-5)(3-x)-2(3-x)²
原式=(x-3)(x²-2)+(x-3)(x-5)-(x-3)(2x-6)
=(x-3)[(x²-2)+(x-5)-(2x-6)]
=(x-3)(x²-2+x-5-2x+6)
=(x-3)(x²-x+1)