3x^2y/5的系數

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3x^2y/5的系數
[(x+2y)(x-2y)-(2x-y)²+(3x-y(2x-5y)]/(-x)的解答

[(x+2y)(x-2y)-(2x-y)²+(3x-y(2x-5y)]/(-x)的解答[(x+2y)(x-2y)-(2x-y)²+(3x-y(2x-5y)]/(-x)的解答[(x+2y)(x-2y)-(2x-y)&sup

先化简再求值(x-y)(x+y)-(x-2y) 的完全平方+x(3x-5y)-(x-y)(x-2y)

先化简再求值(x-y)(x+y)-(x-2y)的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2y=-1/2先化简再求值(x-y)(x+y)-(x-2y)的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2

5x=3y,(2x+y)的平方=5x(x+y)+9

5x=3y,(2x+y)的平方=5x(x+y)+95x=3y,(2x+y)的平方=5x(x+y)+95x=3y,(2x+y)的平方=5x(x+y)+95x=3y,x=3y/5(2x+y)的平方=5x(x+y)+94x²+4xy+y

[(x+2y)的平方-(x+y)(x-y)-5y的平方]除以(2x)[(3x+2y)(3x-2y)-

[(x+2y)的平方-(x+y)(x-y)-5y的平方]除以(2x)[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]除以(4x)[(2x+y)的平方-(-y+2x)(y+2x)]除以(2y)helpme!!!!![(x+2y)的

若x-y/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值

若x-y/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值若x-y/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值若x-y/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值若x-y/x+y=5则x-y=

(2x+y-5)(2x-y+5)(2x+3y)的平方-(2x+y)(2x-y) 其中x=1 y=21

(2x+y-5)(2x-y+5)(2x+3y)的平方-(2x+y)(2x-y)其中x=1y=21-x的平方+2xy+y的平方(a的平方+4)的平方-16a的平方3ax的平方-12ay的平方(2x+y-5)(2x-y+5)(2x+3y)的平方

(x+2y)(x-2y)-(2x-y)的平方+(3x-y)(2x-5y)其中x=-1 y=13分之1

(x+2y)(x-2y)-(2x-y)的平方+(3x-y)(2x-5y)其中x=-1y=13分之1(x+2y)(x-2y)-(2x-y)的平方+(3x-y)(2x-5y)其中x=-1y=13分之1(x+2y)(x-2y)-(2x-y)的平方

若x+y分之x-y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值

若x+y分之x-y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值若x+y分之x-y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值若x+y分之x-y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值

若x-y分之x+y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值

若x-y分之x+y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值若x-y分之x+y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值若x-y分之x+y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值

(x+5y)的平方+(2x+10y)(3x-y)+(y-3x)的平方

(x+5y)的平方+(2x+10y)(3x-y)+(y-3x)的平方(x+5y)的平方+(2x+10y)(3x-y)+(y-3x)的平方(x+5y)的平方+(2x+10y)(3x-y)+(y-3x)的平方答:可以换元,令x+5y=a,y-3

[3(x+y)的立方-5(x+y)的平方-2x-2y]除以(x+y)

[3(x+y)的立方-5(x+y)的平方-2x-2y]除以(x+y)[3(x+y)的立方-5(x+y)的平方-2x-2y]除以(x+y)[3(x+y)的立方-5(x+y)的平方-2x-2y]除以(x+y)[3(x+y)³-5(x+

合并同类项:- 2(x-y)的平方- 3(x-y)+5(y-x)的平方+4(y-x)

合并同类项:-2(x-y)的平方-3(x-y)+5(y-x)的平方+4(y-x)合并同类项:-2(x-y)的平方-3(x-y)+5(y-x)的平方+4(y-x)合并同类项:-2(x-y)的平方-3(x-y)+5(y-x)的平方+4(y-x)

合并同类项:- 2(x-y)的平方- 3(x-y)+5(y-x)的平方+(y-x)

合并同类项:-2(x-y)的平方-3(x-y)+5(y-x)的平方+(y-x)合并同类项:-2(x-y)的平方-3(x-y)+5(y-x)的平方+(y-x)合并同类项:-2(x-y)的平方-3(x-y)+5(y-x)的平方+(y-x)-2(

已知5/x=3/y,求x+y/x+x-y/y-x^2-y^2/y^2的值

已知5/x=3/y,求x+y/x+x-y/y-x^2-y^2/y^2的值已知5/x=3/y,求x+y/x+x-y/y-x^2-y^2/y^2的值已知5/x=3/y,求x+y/x+x-y/y-x^2-y^2/y^2的值y=3x/5所以原式=(

已知x/5=y/3,求x+y分之x+x-y分之y减y^2/x^2-y^2的值

已知x/5=y/3,求x+y分之x+x-y分之y减y^2/x^2-y^2的值已知x/5=y/3,求x+y分之x+x-y分之y减y^2/x^2-y^2的值已知x/5=y/3,求x+y分之x+x-y分之y减y^2/x^2-y^2的值已知x/5=

{ (x+y)/5+(x-y)/2=3 (x+y)/5-(x-y)/2=1的答案是多少,

{(x+y)/5+(x-y)/2=3(x+y)/5-(x-y)/2=1的答案是多少,{(x+y)/5+(x-y)/2=3(x+y)/5-(x-y)/2=1的答案是多少,{(x+y)/5+(x-y)/2=3(x+y)/5-(x-y)/2=1的

(5x-2y)的平方-(2x-y)(2x-3y)(x+y)

(5x-2y)的平方-(2x-y)(2x-3y)(x+y)(5x-2y)的平方-(2x-y)(2x-3y)(x+y)(5x-2y)的平方-(2x-y)(2x-3y)(x+y) 

如果方程组x-y=a-3,2x+y=5的解x、y满足x>0,y

如果方程组x-y=a-3,2x+y=5的解x、y满足x>0,y如果方程组x-y=a-3,2x+y=5的解x、y满足x>0,y如果方程组x-y=a-3,2x+y=5的解x、y满足x>0,yx-y=a-3【1】2x+y=5【2】【1】+【2】得

(2x+5y)(3x-2y)-(2x-3y)的2次方=

(2x+5y)(3x-2y)-(2x-3y)的2次方=(2x+5y)(3x-2y)-(2x-3y)的2次方=(2x+5y)(3x-2y)-(2x-3y)的2次方=2X^2+23XY-19Y^2^2表示平方.

2x+3y/5x-3y=3/5求x/y的值

2x+3y/5x-3y=3/5求x/y的值2x+3y/5x-3y=3/5求x/y的值2x+3y/5x-3y=3/5求x/y的值2x+3y/5x-3y=3/5所以5(2x+3y)=3(5x-3y)10x+15y=15x-9y5x=24yx/y