分解因式:4x²-4xyz+y²z²-4z²
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分解因式:4x²-4xyz+y²z²-4z²
分解因式:4x²-4xyz+y²z²-4z²
分解因式:4x²-4xyz+y²z²-4z²
4x²-4xyz+y²z²-4z²
=(4x²-4xyz+y²z²)-4z²
=(2x-yz)²-(2z)²
=(2x-yz+2z)(2x-yz-2z)