4x³-4x²y-(x-y)分解因式
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4x³-4x²y-(x-y)分解因式
4x³-4x²y-(x-y)分解因式
4x³-4x²y-(x-y)分解因式
原式=4x²(x-y)-(x-y)
=(x-y)(4x²-1)
=(x-y)(2x+1)(2x-1)
4x³-4x²y-(x-y)
=4x²(x-y)-(x-y)
=(x-y)(4x²-1)
=(x-y)(2x+1)(2x-1)