(x+y)^2-6x^2+6y^2+9(x-y)^2的解
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【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)^2+6(x+y)+9
(x-2y)^2-6(2y-x)(x+y)+9(x+y)^2因式分解
81/8*(-x-y)^6*(x-y)^3*4/9(x+y)^4*(y-x)^2
计算(x-y)^7÷(y-x)^6+9-x-y)^3÷(x+y)^2
9(x+y)-2(x+y)-6(x+y)+18(x+y)合并同类项
合并同类项:9(x+y)-2(x+y)-6(x+y)+18(x+y)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
计算:(x-y)^2*(y-x)^2*(x-y)^6
6(x+y)2-2(x-y)(x+y)因式分解
x^3y^2+6x^2y+9x
2(x^2)(y^2)+9y-6x(y^2)-(x^2)y 分解因式
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
x+3y+9y^2/(x-3y)+6x^2y/(9y^2-x^2)
3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少?
因式分解3x^2(x-y)+6x(y-x)
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
9xy(x-y)(x+1)-3y(x-y)(3x+2y)+6y的平方(x-y)(x+1),因式分解