3(x-y)^2-7(x-y)+8(y-x)^2+6(y-x)合并同类项.
合并同类项:-3x+2y-5x-7y
3x+2y-5(x+y)合并同类项
3x+2y合并同类项
合并同类项:-6x²y-x+5x²y-2x+x³y+3x
3(x-y)-2(x+y)-5(x-y)+4(x+y)+3(x-y) 化简合并同类项
合并同类项:6x^2y+2xy-3x^2y^2-7x-5yx-4y^2x^2-6x^2y
合并同类项:- 2(x-y)的平方- 3(x-y)+5(y-x)的平方+4(y-x)
(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)
3(4x-2y)-3(-y+8x).化简,合并同类项
5x+6y+3x-4y+3-x+x =5x+3x-x+x+6y-4y+3 =8x=2y+3 谁能告诉我这题合并同类项的解
1,5{2x-7y}-3{4x-10y} 2,{x-y}-[3x+{-x+y}] 去括号,合并同类项,
2(x+y)+(﹣5x+2y) 合并同类项 3X²-[8X﹣(5X﹣2)﹣7X²]