x的m次幂y的n-1次幂是4次单项式.m,n满足的条件是

问题描述:

x的m次幂y的n-1次幂是4次单项式.m,n满足的条件是

x的m次幂y的n-1次幂是4次单项式.m,n满足的条件是
m+n-1=4
即m+n=5