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因式分解 a²(y-x)+(x-y)
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因式分解:(1) 12a²b(x-y)³-4ab(y-x)² (2) (a²-4
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因式分解1.2(x-y)²-x+y 2.81-9x² 3.-2a³+12a²-1
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
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因式分解:y²(x²-2x)³+y²