【(2x-y)(2x+y)+y(y-6x)】÷2x
1.((y+2x)(-2x+y)+4(x+2y)^2)/3y 2.(2(x-y)^3-8(x-y)^2(x+y)+6y(
(x-y/x+2y)³
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
[(x-2y)^2-2(x+y)(3x-y)-6y^2]÷2x
(x+y)(x-y)+(x-y)^2-(6x^2-2xy^2)÷(2y)
(x+y)(x-y)+(x-y)的平方-(6X的平方Y-2XY的平方)/2Y
(x-y)(x-2y)-(3x-2y)(x-3y)
(x-2y)²+(2x-4y)(x+y)+(x+y)²
分解下列因式:x(y-x)+y(y-x)-(x-y)^2
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
{(x-y)²+(x+y)(x-y)}÷2x