]x2+4xy+4y2-3x-6y+2。
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计算(x+y/x-y+4xy/y2-x2)(x2-9y2)/(x2+2xy-3y2)计算(x+y/x-y+4xy/y2-x2)(x2-9y2)/(x2+2xy-3y2)计算(x+y/x-y+4xy/y2-x2)(x2-9y2)/(x2+2x
x2-4y2-3xy+y+xx2-4y2-3xy+y+xx2-4y2-3xy+y+x(x-4y+1)(x+y)
x2-2xy+y2=4x2+y2-x-y=6解不等式x2-2xy+y2=4x2+y2-x-y=6解不等式x2-2xy+y2=4x2+y2-x-y=6解不等式x2-2xy+y2=4x2+y2-x-y=6解不等式x2-2xy+y2=4x2+y2
4x2-y2/x2-2xy+y2+(2x-y)/2x2-2xy4x2-y2/x2-2xy+y2+(2x-y)/2x2-2xy4x2-y2/x2-2xy+y2+(2x-y)/2x2-2xy57587857
2x2+xy-y2-4x+5y-6因式分解2x2+xy-y2-4x+5y-6因式分解2x2+xy-y2-4x+5y-6因式分解2x^2+xy-y^2-4x+5y-6=(x+y)(2x-y)-4x+5y-6=(x+y)(2x-y)+2(x+y
2x2+xy-3y2+x+4y-1因式分解2x2+xy-3y2+x+4y-1因式分解2x2+xy-3y2+x+4y-1因式分解2x²+xy-3y²+x+4y-1=2×x×x+x×y-3×y×y+x+4×y-1=x×2x+
已知x2+4y2+x2y2+1=6xy,则(x4-y4)/(2x2+xy-y2)*(2x-y)/(xy-y2)/(x2+y2/y)2=已知x2+4y2+x2y2+1=6xy,则(x4-y4)/(2x2+xy-y2)*(2x-y)/(xy-y
x2-(a+b)xy+aby2x2+4xy-5y2x2-5x+32x2+xy-y2-4x+5y-6x2-(a+b)xy+aby2x2+4xy-5y2x2-5x+32x2+xy-y2-4x+5y-6x2-(a+b)xy+aby2x2+4xy-
因式分解2x2+xy-y2-4x+5y-6x2-y2+a2-b2+2ax+2by3x2+5xy-2y2+x+9y-4b4-2b2-82x2+xy-y2-4x+5y-6x2-y2+a2-b2+2ax+2by3x2+5xy-2y2+x+9y-4
(x+√(x2+2011))(y+(√y2+2011))=2011,x2-3xy-4y2-6x-6y+58(x+√(x2+2011))(y+(√y2+2011))=2011,x2-3xy-4y2-6x-6y+58(x+√(x2+2011))
X2+Y2+8X+6Y+25=0求代数式(x2-4y2/x2+4xy+4y2)-x/x+2yX2+Y2+8X+6Y+25=0求代数式(x2-4y2/x2+4xy+4y2)-x/x+2yX2+Y2+8X+6Y+25=0求代数式(x2-4y2/
已知X2+Y2+8X+6Y+25=0求代数式X2++XY+4Y2分之X2-4Y2减X+2Y分之X的值已知X2+Y2+8X+6Y+25=0求代数式X2++XY+4Y2分之X2-4Y2减X+2Y分之X的值已知X2+Y2+8X+6Y+25=0求代
因式分解:3x2+5xy-2y2+x+9y-4x2+x-(a2-a)3x2+4xy-y2x,y,a后面的2表示平方因式分解:3x2+5xy-2y2+x+9y-4x2+x-(a2-a)3x2+4xy-y2x,y,a后面的2表示平方因式分解:3
(3/2x2-5xy+y3)-【-3xy+2(1/4x2-xy)+2/3y2】,其中/x-1/+(y+2)2=0(3/2x2-5xy+y3)-【-3xy+2(1/4x2-xy)+2/3y2】,其中/x-1/+(y+2)2=0(3/2x2-5
已知x2-3xy-4y2的绝对值+2倍根号x2+4xy+4y2-1=0求3x+6y的值已知x2-3xy-4y2的绝对值+2倍根号x2+4xy+4y2-1=0求3x+6y的值已知x2-3xy-4y2的绝对值+2倍根号x2+4xy+4y2-1=
4X2+4xy-3y2+2x+11y-6因式分解4X2+4xy-3y2+2x+11y-6因式分解4X2+4xy-3y2+2x+11y-6因式分解4x^2+4xy-3y^2+2x+11y-6=(2x-y)(2x+3y)+2x+11y-6=(2
分解因式:4x2-12xy+9y2-2x+3y-6分解因式:4x2-12xy+9y2-2x+3y-6分解因式:4x2-12xy+9y2-2x+3y-64x²-12xy+9y²-2x+3y-6=(2x-3y)²-
因式分解x2-4xy+4y2+x-2y-2因式分解x2-4xy+4y2+x-2y-2因式分解x2-4xy+4y2+x-2y-2x2-4xy+4y2+x-2y-2=(x-2y)^2+(x-2y)-2=(x-2y+2)(x-2y-1)x^2-4
x2-4xy+4y2-x+2y-2因式分解x2-4xy+4y2-x+2y-2因式分解x2-4xy+4y2-x+2y-2因式分解原式=(x-2y)²-(x-2y)-2=(x-2y-2)(x-2y+1)
(-x-2y)(x2-2xy+4y2)等于多少(-x-2y)(x2-2xy+4y2)等于多少(-x-2y)(x2-2xy+4y2)等于多少(-x-2y)(x2-2xy+4y2)=-(x+2y)*(x2-2xy+4y2)=-x^3-(2y)^