(x-y)的平方乘以(y-x).急1:(x-y)的平方乘以(y-x)的三次方2:(x-y)的三次方乘以(y-x)
问题描述:
(x-y)的平方乘以(y-x).急
1:(x-y)的平方乘以(y-x)的三次方
2:(x-y)的三次方乘以(y-x)
答
1 (y-x)的四次方
2 -(x-y)的四次方
答
1:(x-y)的平方乘以(y-x)的三次方
=(Y-X)²×(y-x)³
=(y-x)^5
2:(x-y)的三次方乘以(y-x)
=-(x-y)^4