因式分解4x的三次方-4x²y-(x-y)
问题描述：
因式分解4x的三次方-4x²y-(x-y)
答
4x的三次方-4x²y-(x-y)
=4x^2(x-y)-(x-y)
=(x-y)(4x^2-1)
=(x-y)(2x-1)(2x+1)