合并多项式x^3y^2-2/5x^2y+3x^3y^2-1/2yx^2-ax^3y^2中的同类项后,结果中不含
合并同类项:6x^2y+2xy-3x^2y^2-7x-5yx-4y^2x^2-6x^2y
-x^2y+5xy^2-yx^2合并同类项
合并同类项:-3x+2y-5x-7y
3x+2y-5(x+y)合并同类项
x²-3xy-3x²y²+2yx²-y²x 合并同类项
3x+2y合并同类项
3(x-y)-2(x+y)-5(x-y)+4(x+y)+3(x-y) 化简合并同类项
多项式6-2X²+MY-12+3Y+NX²合并同类项后,结果中不含X、Y,求M+N
x^3—2x^2y—y^2x+yx^2+2xy^2—y^3合并同类项
合并同类项:- 2(x-y)的平方- 3(x-y)+5(y-x)的平方+4(y-x)
合并同类项:-6x²y-x+5x²y-2x+x³y+3x
(x+y)和(x-y)各看成一个整体,合并同类项2(x+y)-3(x-y)²+3(x+y)+4(x-y)