֪ԲCķ̣x-2ƽy-4ƽ

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/21 21:05:23
如果A={(x,y)|x,y+2>0},B={(x,y)|2x+3y-6>0},C={(x,y)|x-4

如果A={(x,y)|x,y+2>0},B={(x,y)|2x+3y-6>0},C={(x,y)|x-4如果A={(x,y)|x,y+2>0},B={(x,y)|2x+3y-6>0},C={(x,y)

化简分式(x-y+4xy/x-y)(x-y-4xy/x+y)的结果是 A.x^2-y^2 B.y^2-x^2 C.x^2-4y^2 D.4x^2-y^2

化简分式(x-y+4xy/x-y)(x-y-4xy/x+y)的结果是A.x^2-y^2B.y^2-x^2C.x^2-4y^2D.4x^2-y^2化简分式(x-y+4xy/x-y)(x-y-4xy/x+

a(x-y)(x+y)-b(y-x)(x+y)-c(x-y)^2(y+x)提取公因式

a(x-y)(x+y)-b(y-x)(x+y)-c(x-y)^2(y+x)提取公因式a(x-y)(x+y)-b(y-x)(x+y)-c(x-y)^2(y+x)提取公因式a(x-y)(x+y)-b(y-

计算4a^4b^7c·(-ab³c²)(2a+y)²-y(y+4x) (x-4y)(2x+3y)-(x+2y)(x-y)

计算4a^4b^7c·(-ab³c²)(2a+y)²-y(y+4x)(x-4y)(2x+3y)-(x+2y)(x-y)计算4a^4b^7c·(-ab³c

C语言 答案为什么是8 4 #includevoid f(int y,int *x){y=y+*x;*x=*x+y;}main(){int x=2,y=4;f(y,&x);printf(%d %d ,x,y);}

C语言答案为什么是84#includevoidf(inty,int*x){y=y+*x;*x=*x+y;}main(){intx=2,y=4;f(y,&x);printf("%d%d\n",x,y);

(-x+y)(y²+x²)再乘以( )就等于x`4-y`4 A.X-Y B.X+Y C.-X+Y D.-X-YA.X-Y B.X+Y C.-X+Y D.-X-Y`表示次方

(-x+y)(y²+x²)再乘以()就等于x`4-y`4A.X-YB.X+YC.-X+YD.-X-YA.X-YB.X+YC.-X+YD.-X-Y`表示次方(-x+y)(y²

2a(x-2y)-3b(2y-x)-4c(x-2y) 因式分解 急.

2a(x-2y)-3b(2y-x)-4c(x-2y)因式分解急.2a(x-2y)-3b(2y-x)-4c(x-2y)因式分解急.2a(x-2y)-3b(2y-x)-4c(x-2y)因式分解急.2a(x

谁能帮我因式分解啊.A.4(x-y+1)+y(y-2x) B.5+7x-6x² C.12x²+xy-6y²

谁能帮我因式分解啊.A.4(x-y+1)+y(y-2x)B.5+7x-6x²C.12x²+xy-6y²谁能帮我因式分解啊.A.4(x-y+1)+y(y-2x)B.5+7x

分解因式1.x^2+y^2+2x+6y+10 2.(1-y)^3+4(y-x) 3.(a-c)^2-4(a-b)(b-c)

分解因式1.x^2+y^2+2x+6y+102.(1-y)^3+4(y-x)3.(a-c)^2-4(a-b)(b-c)分解因式1.x^2+y^2+2x+6y+102.(1-y)^3+4(y-x)3.(

下列各式是多项式4x^2-(y-z)^2的一个因式的是( ) A:4x-y+z B:4y-y-x C:2x-y+x D:2x-y-x

下列各式是多项式4x^2-(y-z)^2的一个因式的是()A:4x-y+zB:4y-y-xC:2x-y+xD:2x-y-x下列各式是多项式4x^2-(y-z)^2的一个因式的是()A:4x-y+zB:

已知x、y∈R,且2x²+y²-4x≤0,则A.y²>4x B.y²≤4x C.y²≥4x D.y²≤4x

已知x、y∈R,且2x²+y²-4x≤0,则A.y²>4xB.y²≤4xC.y²≥4xD.y²≤4x已知x、y∈R,且2x²+y&

化简 2x-[3y-5x-(-2x-7y)]等于 ( ) A:-7x+10y B:5x+4y C:-x-4y D:9x-10y

化简2x-[3y-5x-(-2x-7y)]等于()A:-7x+10yB:5x+4yC:-x-4yD:9x-10y化简2x-[3y-5x-(-2x-7y)]等于()A:-7x+10yB:5x+4yC:-

解微分方程(x+y)dx+(3x+3y-4)dy=0答案x+3y+2ln|x+y-2|=c

解微分方程(x+y)dx+(3x+3y-4)dy=0答案x+3y+2ln|x+y-2|=c解微分方程(x+y)dx+(3x+3y-4)dy=0答案x+3y+2ln|x+y-2|=c解微分方程(x+y)

已知实数x,y满足x^2+y^2-6x-8y+21=0,若4x+3y+c

已知实数x,y满足x^2+y^2-6x-8y+21=0,若4x+3y+c已知实数x,y满足x^2+y^2-6x-8y+21=0,若4x+3y+c已知实数x,y满足x^2+y^2-6x-8y+21=0,

1、(x+y)-(x+y)^32、x(x-y)-y(y-x)3、(a-b)^2-4b+4a4、a^n+1+a^n+a^n-15、x(x+y)(x-y)-x(x+y)^26、已知a+c-7=0,求(a+b)^2-2a(b-c)-2b(b-c)+(c-b)^2的值7、x^2-8y^2(x^2-2y^2)

1、(x+y)-(x+y)^32、x(x-y)-y(y-x)3、(a-b)^2-4b+4a4、a^n+1+a^n+a^n-15、x(x+y)(x-y)-x(x+y)^26、已知a+c-7=0,求(a+

1.x(x-y)-(x-3)(x+3) 2.(a^2+b^2)(a+b)(a-b) 3.(a-2b+3c)(a+2b-3c) 4.(x+y-z)(x-y+z) 5.(x^8+y^8)(x^4+y^4)(x^2+y^2)(x+y)(x-y)

1.x(x-y)-(x-3)(x+3)2.(a^2+b^2)(a+b)(a-b)3.(a-2b+3c)(a+2b-3c)4.(x+y-z)(x-y+z)5.(x^8+y^8)(x^4+y^4)(x^2