若x^6y^m/x^2ny^3/xy^2与2x^3y^3是同类项,求m^2-25n的值
问题描述:
若x^6y^m/x^2ny^3/xy^2与2x^3y^3是同类项,求m^2-25n的值
答
若x^6y^m/x^2ny^3/xy^2与2x^3y^3是同类项;
x^(6-2n-1)y^(m-3-2)与2x^3y^3是同类项;
6-2n-1=3;n=1;
m-3-2=3;m=8;
m^2-25n=64-25=39;