(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)
答
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
如有帮助,记得采纳,谢谢
祝学习进步!
答
(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