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(x²+y²-1)²-4x²y²因式分解
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推荐答案 2012-12-29
=[x²+y²-1-2xy][x²+y²-1+2xy]
=[(x-y)²-1][(x+y)²-1]
=(x-y-1)(x-y+1)(x+y+1)(x+y-1)
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因式分解
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(x²+y²-1)²-4x²y²
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(x²+y²-1)²
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数学问题求高手!要步骤!
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大家正在搜
x²+y²=1+|x|y
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(x-y)³
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y''-y'=x
x²-y²=1
x>y?x:y
x2+y2=1
x²+y²=9
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