x³-16x²+64x25(x-y)&#-查字典问答网

来自刘伊威的问题

　　x³-16x²+64x25(x-y)²-10(x-y)+1x⁴-y⁴5x³-10x²+5x(a+b)²-4(a+b-1)

　　x³-16x²+64x

　　25(x-y)²-10(x-y)+1

　　x⁴-y⁴

　　5x³-10x²+5x

　　(a+b)²-4(a+b-1)

1回答

2020-12-22 15:29

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骆雷飞

　　x³-16x²+64x=x(x²-16x+64)=x(x-8)²25(x-y)²-10(x-y)+1=(5x-5y-1)²x⁴-y⁴=(x²+y²)(x²-y²)=(x²+y²)(x-y)(x+y)5x³-10x²+5x=5x(x...

2020-12-22 15:30:33

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