已知4x4myn-3m与5xny是同类项,则m+n=______.
已知代数式2a3bn+1与-3am+2b2是同类项,则2m+3n=______.
已知代数式2a3bn+1与-3am-2b2是同类项,则m+2n=______.
单项式3xm+2ny8与-2x2y3m+4n是同类项,则m+n=______.
若单项式3x2yn与-2xmy3是同类项,则m+n=______.
当m=______,n=______时,2xmy3与-3xy3n是同类项.
已知单项式-5x3yn与5xm+1y3是同类项,则m-n的值为______.
单项式3x^m+2 y^7与-2x^4 y^2m+3n是同类项,则m+n=______
已知-2^9m+2 b^3n-4与四分之三a^6m+8 b^8-n是同类项,则m+n=
已知-3x^m-2ny^n-2与5分之1x^5y^4-m是同类项,求(m-2n)的平方-5(m+n)
若单项式-4x^m-1 与2/3x^2m-3 y^3m-5是同类项,则m=(),n=().
2a5bn+2与-9am+nb5是同类项.求2m-3n=______.
已知9a^m-1b^3与-ab^2n的积与5a^4b^7是同类项,则mn=?