3x^2 8xy-3y^2
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7MY ii
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
2x²y-3(2xy-xy)-xy
已知xy/x+y=2,求代数式8x-5xy+8y/-x+3xy-y的值
诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy)
x^2-xy-6y^2+3xy+y+2
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
X^Y-2XY^2+y^3
xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
计算:3xy[2xy-x(y-2)+x]
计算3xy[2xy-x(y-2)+x-1]
(-3x^y+2xy)-( )=4x^+xy
已知xy/x+y=2,则代数式3x-5y+8y/-x+3xy-y的值
3x-2xy-8-2x+6xy-x²+6、-x²+2xy-y²-3x²-2xy+2y²合并同类项
(8X^3Y-6X^2Y^2-2XY^3)/(3XY)
(8X^3Y-6X^2Y^2-2XY^3)/(3XY)
(12x^2y-8xy^2+16xy)/-3x+2y-4=?
(12x^2y-8xy^2+16xy)/-3x+2y-4=?