x^2/^2+y

来源:学生作业帮助网 编辑:作业帮 时间:2024/03/29 06:40:23
x^2/^2+y
(x-3y)(-3y-x)-2(x-3y)^2要过程

(x-3y)(-3y-x)-2(x-3y)^2要过程(x-3y)(-3y-x)-2(x-3y)^2要过程(x-3y)(-3y-x)-2(x-3y)^2要过程=-(x-3y)(x+3y)-2(x-3y)²=-9y²-3x&

(-x/x-y)^2乘x^2-y^2/x

(-x/x-y)^2乘x^2-y^2/x(-x/x-y)^2乘x^2-y^2/x(-x/x-y)^2乘x^2-y^2/x我的回答满意吗?采纳吧

F(x,y)=18x+34y-2x^2-10y^2-8xy 条件x+y=20000 ,x>0,y>0

F(x,y)=18x+34y-2x^2-10y^2-8xy条件x+y=20000,x>0,y>0x,y取怎样的值时,可以使F(x,y)最大?F(x,y)最大为多少?x,y又分别为多少?F(x,y)=18x+34y-2x^2-10y^2-8x

先化简再求植:0.5(x+y+2)^+0.5(x-y-2)(x-y+2)-2(x+y)其中x-y=6

先化简再求植:0.5(x+y+2)^+0.5(x-y-2)(x-y+2)-2(x+y)其中x-y=6,xy=21先化简再求植:0.5(x+y+2)^+0.5(x-y-2)(x-y+2)-2(x+y)其中x-y=6,xy=21先化简再求植:0

已知m/x^2--y^2=2xy--y^2/x^2--y^2=x-y/x+y则m=?

已知m/x^2--y^2=2xy--y^2/x^2--y^2=x-y/x+y则m=?已知m/x^2--y^2=2xy--y^2/x^2--y^2=x-y/x+y则m=?已知m/x^2--y^2=2xy--y^2/x^2--y^2=x-y/x

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2

x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2以上错误,修改如下:y/x=2

已知x^2y等于3,求2xy(x^5y^2-3x^3y-4x)

已知x^2y等于3,求2xy(x^5y^2-3x^3y-4x)已知x^2y等于3,求2xy(x^5y^2-3x^3y-4x)已知x^2y等于3,求2xy(x^5y^2-3x^3y-4x)2xy(x^5y^2-3x^3y-4x)=2x

求方程y”-2y'+y=1+(x+2)e^x的通解.

求方程y”-2y'+y=1+(x+2)e^x的通解.求方程y”-2y'+y=1+(x+2)e^x的通解.求方程y”-2y'+y=1+(x+2)e^x的通解.无法打印相关公式,只提供思路:y”-2y'+y=0ay”-2y'+y=1by”-2y

化简y(x+y)+(x+y)(x-y)-x^2

化简y(x+y)+(x+y)(x-y)-x^2化简y(x+y)+(x+y)(x-y)-x^2化简y(x+y)+(x+y)(x-y)-x^2y(x+y)+(x+y)(x-y)-x^2=(x+y)(y+x-y)-x^2=(x+y)*x-x^2=

因式分解4(x-y)^2-12(y-x)+y

因式分解4(x-y)^2-12(y-x)+y因式分解4(x-y)^2-12(y-x)+y因式分解4(x-y)^2-12(y-x)+y后面的y没有平方吗?

化简求值(2X十y)(X一2y)一2x(X十y)其中x,y满足X^2十y^2一2X十4y=一5

化简求值(2X十y)(X一2y)一2x(X十y)其中x,y满足X^2十y^2一2X十4y=一5化简求值(2X十y)(X一2y)一2x(X十y)其中x,y满足X^2十y^2一2X十4y=一5化简求值(2X十y)(X一2y)一2x(X十y)其中

(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2

(x+y)(x-y)-(x-y)^2如题(x+y)(x-y)-(x-y)^2(x+y)(x-y)-(x-y)^2如题(x+y)(x-y)-(x-y)^2(x+y)(x-y)-(x-y)^2如题(x+y)(x-y)-(x-y)^2(x+y)(

设二元函数z=x^2+xy+y^2-x-y,x^2+y^2

设二元函数z=x^2+xy+y^2-x-y,x^2+y^2设二元函数z=x^2+xy+y^2-x-y,x^2+y^2设二元函数z=x^2+xy+y^2-x-y,x^2+y^2当x=y=-√2/2时x^2+y^2最大xy最大-x-y最大所以最

3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y

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?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?3y/x*x

因式分解x(x+y)(x-y)-x(x+y)^2

因式分解x(x+y)(x-y)-x(x+y)^2因式分解x(x+y)(x-y)-x(x+y)^2因式分解x(x+y)(x-y)-x(x+y)^2x(x+y)(x-y)-x(x+y)^2=x(x+y)[(x-y)-(x+y)]=x(x+y)(

x^2(x-y)+4(y-x)因式分解

x^2(x-y)+4(y-x)因式分解x^2(x-y)+4(y-x)因式分解x^2(x-y)+4(y-x)因式分解=x2(x-y)-4(x-y)=(x2-4)(x-y)=(x+2)(x-2)(x-y)(x+2)(x-2)(x-y)

[(x-y)^2-(x+2y)(x-2y)]/y

[(x-y)^2-(x+2y)(x-2y)]/y[(x-y)^2-(x+2y)(x-2y)]/y[(x-y)^2-(x+2y)(x-2y)]/y=[(x²-2xy+y²)-(x²-4y²)]/y=(x

计算:y-x分之x+y+x-y分之y-y-x分之2x-y

计算:y-x分之x+y+x-y分之y-y-x分之2x-y计算:y-x分之x+y+x-y分之y-y-x分之2x-y计算:y-x分之x+y+x-y分之y-y-x分之2x-y(x+y)/(y-x)+y/(x-y)-(2x-y)/(y-x)=(x+

[2x²-(x+y) (x-y)] [(-x-y) (y-x)+2y²] 其中x

[2x²-(x+y)(x-y)][(-x-y)(y-x)+2y²]其中x=1,y=2数学:[2x²-(x+y)(x-y)][(-x-y)(y-x)+2y²]其中x=1,y=2[2x²-(x+

(x^2n+1)+(y^2n+1)能被______整除?A.x-y B.x+y C.x^3+y^3

(x^2n+1)+(y^2n+1)能被______整除?A.x-yB.x+yC.x^3+y^3D.x^3-y^3急(x^2n+1)+(y^2n+1)能被______整除?A.x-yB.x+yC.x^3+y^3D.x^3-y^3急(x^2n+