(2x-y)(-y+2y)(y+x)(y²+4)
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x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
化简y(x+y)+(x+y)(x-y)-x^2
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
[(x-y)^2-(x+2y)(x-2y)]/y
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
y+y'-2y=2x
微分方程y - 2y' + y = x
化简:[(x+y)(x-y)(x+y)^2-2y(x-2y)](-2y) 谢谢!
计算:[(x+y)(x-y)-(x-y)^2+2y(x-y)]/(-2y)
[(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y
[(x+y)(x-y)-(x-y)²+2y(x-y)]÷4y
因式分解x(x+y)(x-y)-x(x+y)^2
{(z+y)(x-y)-(x-y)的2次方+2y(x-y)}除以4y
【(x-y)^2+(x+y)(x-y)】除以 2x
[(x-y)²+(x+y)(x-y)]除以2x
计算(2x+y)(x-y)-(2x+y)(y-2x)+(2x^2y-y)^2/(-y^2)
计算[2x^2-(x+y)(x-y)][(-x-y)(y-x)+2y^2]