已知（a^(m+1)*b^(n+2))(a^(2n-1*b^2m)=a^5b^3,则m-3n=
问题描述：
已知（a^(m+1)*b^(n+2))(a^(2n-1*b^2m)=a^5b^3,则m-3n=
答
a^(m+2n) *b^(2m+n+2)=a^5b^3
m+2n=5
2m+n+2=3
m-3n=-1-3*3=-10