（x²+x）²-8x²-8x+12
=（x²+x）²-8（x²+x）²+12
=（x²+x-6）（x²+x-2）
=（x+3）(x-2)(x+2)(x-1)
x³-2x+1
=x³-1-2(x-1)
=(x-1)(x²+x+1)-2(x-1)
=(x-1)(x²+x-1)
因式分解（x²+x）²-8x²-8x+12和 x³-2x+1求数学高手解答,
（x²+x）²-8x²-8x+12
=（x²+x）²-8（x²+x）²+12
=（x²+x-6）（x²+x-2）
=（x+3）(x-2)(x+2)(x-1)
x³-2x+1
=x³-1-2(x-1)
=(x-1)(x²+x+1)-2(x-1)
=(x-1)(x²+x-1)