(x2+2xy+y2)( x2-xy+y2)2 化简
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(x2+2xy+y2)(x2-xy+y2)2化简(x2+2xy+y2)(x2-xy+y2)2化简(x2+2xy+y2)(x2-xy+y2)2化简(x^2+2xy+y^2)(x^2-xy+y^2)^2=
(x2+2xy+y2)( x2-xy+y2)2 化简
(x2+2xy+y2)( x2-xy+y2)2 化简
(x2+2xy+y2)( x2-xy+y2)2 化简
(x^2+2xy+y^2)(x^2-xy+y^2)^2
=(x+y)^2*(x^2-xy+y^2)^2
=((x+y)(x^2-xy+y^2))^2
=(x^3+y^3)^2
=x^6+2x^3y^3+y^6
x6-x4y2+3x3y3-x2y4+y6
(x-y)(x2+xy+y2)
(x+y)(x2-xy+y2)
4x2-y2/x2-2xy+y2 +(2x-y)/2x2-2xy
(3xy-9x2-2y2-6xy)-(6x2+2xy-3xy-y)
计算：(xy-x2)÷xy分之x2-2xy+y2
计算(x+y/x-y + 4xy/y2-x2)(x2-9y2)/（x2+2xy-3y2）
(x2+2xy+y2)( x2-xy+y2)2 化简
(x2-2xy+y2)-(x2+2xy+y2)=什么
( x2+xy+y2) ( x2+xy+2y2)-12y4
(x2+xy+y2)-4xy(x2+y2)
x2-2xy+y2-9
已知x2+4y2+x2y2+1=6xy,则(x4-y4)/(2x2+xy-y2)*(2x-y)/(xy-y2)/(x2+y2/y)2=
25(x2+ 2xy +y2)-9(x2-2xy+y2)因式分解.x2,y2是x平方,y平方的意思.2xy就是2xy.快,
x2-2xy+y2=4 x2+y2-x-y=6 解不等式x2-2xy+y2=4 x2+y2-x-y=6 解不等式
计算x2+y2+2xy分之x2-4y2/x2+xy分之2y+xx后的2表示平方
2(x2-xy)-3(2x2-3xy)-2[x2-(2x2-xy+y2)] 化简.
因式分解x2+y2-xy-x-y+1
x2-4y2-3xy+y+x