(x-y)的十次方除以(y-x)的五次方除以(x-y)

问题描述:

(x-y)的十次方除以(y-x)的五次方除以(x-y)

您好:

(x-y)的十次方除以(y-x)的五次方除以(x-y)
=-(x-y)的10-5-1次方
=-(x-y)的4次方

不明白,可以追问
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祝学习进步!

(x-y)的十次方除以(y-x)的五次方除以(x-y)
=(x-y)^10÷(y-x)^5÷(x-y)
=(x-y)^10÷[-(x-y)^5]÷(x-y)
=-(x-y)^5÷(x-y)
=-(x-y)^4
同底数幂相除,底数不变,指数相减