X的五次方减五倍的X平方加十倍的X减六怎么分解

1个回答

x^5-5x²+10x-6
=x^5-x²-4x²+10x-6
=x²(x³-1)-2(2x²-5x+3)
=x²(x-1)(x²+x+1)-2(x-1)(2x-3)
=(x-1)(x^4+x³+x²-4x+6)