4x^(m+6)y^2+X^3y^n=单项式,m^n=
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4x^(m+6)y^2+X^3y^n=单项式,m^n=4x^(m+6)y^2+X^3y^n=单项式,m^n=4x^(m+6)y^2+X^3y^n=单项式,m^n=m+6=32=n∴m=-3n=2∴m^
4x^(m+6)y^2+X^3y^n=单项式,m^n=
4x^(m+6)y^2+X^3y^n=单项式,m^n=
4x^(m+6)y^2+X^3y^n=单项式,m^n=
m+6=3
2=n
∴m=-3
n=2
∴m^n=(-3)²=9
因为：4x^(m+6)y^2+X^3y^n=单项式，所以：m+6=3，2=n
解得：m=-3，n=2
所以：m^n=(-3)^2=9
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