若3/4x^[5m+2n+2]y^3与-4/3x^[6]y^[3m-2n-1]的和是单项式,求m,n的值

问题描述:

若3/4x^[5m+2n+2]y^3与-4/3x^[6]y^[3m-2n-1]的和是单项式,求m,n的值

5m+2n+2=6
3m-2n-1=3
解这个方程组得
m=1
n=-1/2