4xy²-4x²y-y³ (4a²+1)²-16a² 分解因式4xy²-4x²y-y³ (4a²+1)²-16a² 两个算式

4xy²-4x²y-y³ (4a²+1)²-16a² 分解因式4xy²-4x²y-y³ (4a²+1)²-16a² 两个算式
4xy²-4x²y-y³ (4a²+1)²-16a² 分解因式
4xy²-4x²y-y³
(4a²+1)²-16a²
两个算式

4xy²-4x²y-y³ (4a²+1)²-16a² 分解因式4xy²-4x²y-y³ (4a²+1)²-16a² 两个算式
4xy²-4x²y-y³
=y(4xy-4x^2-y^2)
=-y(y-2x)^2
(4a²+1)²-16a²
=(4a^2-4a+1)(4a^2+4a+1)
=(2a-1)^2*(2a+1)^2

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