(x-y)的二次方乘以(x-y)的三次方乘以(y-x)的五次方,求解。 5
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原式=(x-y)²×(x-y)³×(y-x)^5
=(x-y)²×(x-y)³×[-(x-y)]^5
=(x-y)²×(x-y)³×(-1)^5×(x-y)^5
=-(x-y)^(2+3+5)
=-(x-y)^10
=(x-y)²×(x-y)³×[-(x-y)]^5
=(x-y)²×(x-y)³×(-1)^5×(x-y)^5
=-(x-y)^(2+3+5)
=-(x-y)^10
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