因式分解:4x(1-x)的三次方+2(x-1)的平方急急急
问题描述:
因式分解:4x(1-x)的三次方+2(x-1)的平方
急急急
答
4x(1-x)^3+2(x-1)^2
= 2(x-1)^2 - 4x(x-1)^3
= 2(x-1)^2(1-2x²+2x)
= -2(x-1)^2(2x²-2x-1)
答
4x(1-x)的三次方+2(x-1)²
=-4x(x-1)的三次方+2(x-1)²
=(x-1)²[-4x(x-1)+2]
=(x-1)²[-4x²+4x+2]
=-2(x-1)²(2x²-2x-1)