已知单项式[(2a^3)(b^n+1)]与-(3^m-2b^2)是同类项,则2m+3n=?
问题描述:
已知单项式[(2a^3)(b^n+1)]与-(3^m-2b^2)是同类项,则2m+3n=?
答
单项式[(2a^3)(b^n+1)]与-(a^m-2b^2)是同类项
3=m-2
n+1=2
m=5,n=1
2m+3n=10+3=13