作业帮(-2xy^2)^2(-0.5x^2y)^3(-2/3x^2y^3)
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(-2xy^2)^2(-0.5x^2y)^3(-2/3x^2y^3)
(-2xy^2)^2(-0.5x^2y)^3(-2/3x^2y^3)
(-2xy^2)^2(-0.5x^2y)^3(-2/3x^2y^3)
(-2xy^2)^2(-0.5x^2y)^3(-2/3x^2y^3)
=4x^2y^4*(-1/8x^6y^3)*(-2/3x^2y^3)
=4*1/8*2/3*x^2y^4*x^6y^3*x^2y^3
=1/3*x^2x^6x^2*y^3*y^3y^4
=1/3*x^(2+6+2)y^(3+3+4)
=1/3x^10y^10
xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2
x^2-xy/xy-y^2约分
（x^2+xy/x-y)/（xy/x-y)计算
(-x-y)(x^2+xy+y^2)
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
.(x+y-2)(x+y-2xy)+(xy-1)^2
(x^2-xy)y÷y-x/xy怎么做?
2x²y-3(2xy-xy)-xy
(x^2+2xy+y^2-4xy)*(x^2-2xy+y^2+4xy)
（y/(x^2-xy)+x/(y^2-xy))除以(x-y)/(xy)
(xy-x²)÷(x²-2xy+y²/xy)×（x-y/x²）
x-y/x²÷x²-2xy+y²/xy*（xy-x²）
初二数学化简分式x^2 -y^2/xy - xy-y^2/xy-x^2x^2 -y^2/xy - xy-y^2/xy-x^2
代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy
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)[(x+y)^2-xy]+(x-y)[(x-y)^2+xy]