x(x-2)(x^2-2x-2)-3 yin shi fen jie
问题描述:
x(x-2)(x^2-2x-2)-3 yin shi fen jie
答
=(x²-2x)(x²-2x-2)-3
=(x²-2x)²-2(x²-2x)-3
=(x²-2x+1)(x²-2x-3)
=(x-1)²(x-3)(x+1)