1.5(2a+b)^2-3(3a+b)-3(2a+b)^2+2(3a+2b)
2.已知3^m+1/y^3与-mx^4/y^n+2是同类项,则3x^m+1/y^3-mx^4/y^n+2=?
1.3.25 2.0.
寻找整式加减练习题!
1.5(2a+b)^2-3(3a+b)-3(2a+b)^2+2(3a+2b)
2.已知3^m+1/y^3与-mx^4/y^n+2是同类项,则3x^m+1/y^3-mx^4/y^n+2=?
1.3.25 2.0.