6x^2+xy-2y^2+2x-8y-8和x^3-3x^2-13x+15以及(y+1)^4+(y+3)^4-272还有x^4 +x^2y^2+y^4分解因式具体过程!
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因式分解:8(x-2y)-x(7x+y)+xy.
诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy)
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
[ 2x-6y][8-9xy]÷xy等于?
xy-2x+6y-12 xy+8
因式分解 (x^2)y-6xy+8y
3(x-y)²-7(x-y)+8(x-y)²+6(x-y)求详细过程(2) 5xy-4x²y-8xy²+3xy-xy²+4x²y
(8X^3Y-6X^2Y^2-2XY^3)/(3XY)
(8X^3Y-6X^2Y^2-2XY^3)/(3XY)
(-2x²y+6x³y⁴-8xy)÷(-2xy)
因式分解 6x(x-y)^2-8y(y-x)^33x-4xy+4y^2
[-xy^2(2x+y)-8xy)-x^2y)]除以2xy=计算
(-x-y)(x^2+xy+y^2)
已知x-xy=8,xy-y=-9,求x+y-2xy的值
化简x^-y^/x^-2xy+y^
2*(x-y)²(y-x)(xy)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
(x^2+xy/x-y)/(xy/x-y)计算