因式分解:4x³-4x²y-(x-y)
问题描述:
因式分解:4x³-4x²y-(x-y)
答
4x³-4x²y-(x-y)
=4x²(x-y)-(x-y)
=(x-y)(4x²-1)
=(x-y)(2x+1)(2x-1)