5(y-x)³·3x²(x-y)^6计算
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5(y-x)³·3x²(x-y)^6计算5(y-x)³·3x²(x-y)^6计算5(y-x)³·3x²(x-y)^6计算5(y-x)
5(y-x)³·3x²(x-y)^6计算
5(y-x)³·3x²(x-y)^6计算
5(y-x)³·3x²(x-y)^6计算
5(y-x)³·3x²(x-y)^6
=5(y-x)³·3x²(y-x)^6
=15x²(y-x)^9
=-5(x-y)³·3x²(x-y)^6
=-15x²(x-y)^9