将2(x+y)-3(x-y)-4(x+y)+5(x-y)-3(x-y)合并同类项得:( )

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/27 18:47:43
将2(x+y)-3(x-y)-4(x+y)+5(x-y)-3(x-y)合并同类项得:( )

将2(x+y)-3(x-y)-4(x+y)+5(x-y)-3(x-y)合并同类项得:( )
将2(x+y)-3(x-y)-4(x+y)+5(x-y)-3(x-y)合并同类项得:( )

将2(x+y)-3(x-y)-4(x+y)+5(x-y)-3(x-y)合并同类项得:( )
将2(x+y)-3(x-y)-4(x+y)+5(x-y)-3(x-y)合并同类项得:-2(x+y)-(x-y)
也可继续化为:-3x-y