化简:-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}版本
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化简:-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}版本化简:-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}版本化简:-3{y-(3x^2-3xy)}-{y+2(4
化简:-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}版本
化简:-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}
版本
化简:-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}版本
-3{y-(3x^2-3xy)}-{y+2(4x^2-4xy)}
=-3{y-3x^2+3xy}-{y+8x^2-8xy}
=-3y+9x^2-9xy-y-8x^2+8xy
=x^2-xy-4y
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
化简2(x²y+xy)-3(x²y-xy)-4x²y
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
化简(3x^2-5xy)+{-x^2-[-3xy+2(x^2-xy)+y^2]}
化简:2x²y+{2xy-[3x²y-2(-3x²y+2xy)]-4xy}化简:2x²y+{2xy-[3x²y-2(-3x²y+2xy)]-4xy}
2x²y-3(2xy-xy)-xy
化简3x^2y-[2xy^2-2(xy-3/2x^2y)+xy]+3xy^2
化简!1、(x^2-xy)+xy+y^2 2、3(x^2-xy)-xy+y^2
5x^2y-3xy^2+4xy-14xy^2+4xy-2x^2y(化简)
【x(xy-xy)-y(x-xy)】÷3xy
-x-3xy+y
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
化简4xy-3y²-3x²+xy-3xy-2x²+x²-2y²
(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
计算:3xy[2xy-x(y-2)+x]