若(a的m+1次方b的n+2次方)(a的2n-1b的2n次方)=a的五次方b的三次方,则求m+n

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[a^(m+1)b^(n+2)][a^(2n-1)b^(2n)]=a^5b^3,则求m+n
a^(m+2n)b^(3n+2)=a^5b^3
m+2n=5,3n+2=3
m=13/3,n=1/3
m+n =13/3+1/3=14/3