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因式分解:64x²y²-(x²+16y²)²
人气:475 ℃ 时间:2020-05-29 16:15:43
解答
64x²y²-(x²+16y²)²
=(8xy+x²+16y²)(8xy-x²-16y²)
=-(x²+8xy+16y²)(x²-8xy+16y²)
=-(x+4y)²(x-4y)²
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