(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
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(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程(X-3xy+4xy-y)-[-2x-2
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
5x^2y-3xy^2+4xy-14xy^2+4xy-2x^2y(化简)
计算:3xy(x²y-xy²+xy)-xy²(2x-xy+2x)
xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2
计算:3xy[2xy-x(y-2)+x]
(-3x^y+2xy)-( )=4x^+xy
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
求(3x^+y^-5xy)-【2x^-(-4xy-y^+7x^)】=?
求(3x^+y^-5xy)-【2x^-(-4xy-y^+7x^)】=?
2x²y-3(2xy-xy)-xy
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2
5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2)
3(x^2y+xy)-4(xy-2x^2y)-(-xy)
当x-y=2xy时,求4x-3xy-4y/xy
XY(XY+3)+(XY+4)+4(X+Y+1)-(X+Y+2)
3(x平方y+xy)-4(xy-2x平方y)-(xy)
化简 2(xy-xy²+3)-(-4xy²+xy-1) 其中,x等于--4,y等于-3