a³-2a²+a分解因式还有一题4xy²-4x²y-y³
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a³-2a²+a分解因式还有一题4xy²-4x²y-y³
a³-2a²+a分解因式
还有一题4xy²-4x²y-y³
a³-2a²+a分解因式还有一题4xy²-4x²y-y³
a³-2a²+a
=a(a²-2a+1)
=a(a-1)²
4xy²-4x²y-y³
=-y(4x²-4xy+y²)
=-y(2x-y)²
提取公因式a a³-2a²+a
=a(a²+2a+1)
=a(a+1)²
同理 4xy²-4x²y-y³
=-y(4x²-4xy+y²)
=-y(2x-y)²