-2(x-y)^4和(y-x)^4是不是同类项
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-2(x-y)^4和(y-x)^4是不是同类项
-2(x-y)^4和(y-x)^4是不是同类项
-2(x-y)^4和(y-x)^4是不是同类项
是啊,
因为 x-y 与 y-x 互为相反数,但指数为 4 ,是偶数,
所以 (y-x)^4 = (x-y)^4 ,
所以它们是同类项.
-2(x-y)^4和(y-x)^4是不是同类项
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