-x-3xy+y

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-x-3xy+y-x-3xy+y-x-3xy+y-(x2+3xy-y2)=-(x2+3xy+2.25y2-3.25y2)=-((x+1.5)2-3.25y2)结束了?不会分解分解肯定不对你们老师出的题

-x-3xy+y
-x-3xy+y

-x-3xy+y

-(x2+3xy-y2)=-(x2+3xy+2.25y2-3.25y2)=-((x+1.5)2-3.25y2)结束了?不会分解分解肯定不对你们老师出的题?对啊题出错了?有人分解出来了?

【x(xy-xy)-y(x-xy)】÷3xy -x-3xy+y 2x²y-3(2xy-xy)-xy x^2-xy-6y^2+3xy+y+2 xy²(3x²y-xy²+y) 因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) X^Y-2XY^2+y^3 化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] 计算:(x平方+y平方/xy-x平方/xy+y平方-y平方/x平方+xy)除以3/xy (X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程 xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2 (-3x^y+2xy)-( )=4x^+xy 计算:3xy[2xy-x(y-2)+x] 计算3xy[2xy-x(y-2)+x-1] x*x+xy=3,xy+y*y=2,则x*x+2xy+y*y=________? 3x(-y-xy²+x²) (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x, 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6