已知(4x+y-1)²+|2y-2x+1|=0,求x,y的值

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 05:53:46
已知(4x+y-1)²+|2y-2x+1|=0,求x,y的值已知(4x+y-1)²+|2y-2x+1|=0,求x,y的值已知(4x+y-1)²+|2y-2x+1|=0,求

已知(4x+y-1)²+|2y-2x+1|=0,求x,y的值
已知(4x+y-1)²+|2y-2x+1|=0,求x,y的值

已知(4x+y-1)²+|2y-2x+1|=0,求x,y的值
4x+y-1=0,
2y-2x+1=0,
推出x=0.3,y=-0.2
初一的吧,好好学习!

4x+y-1=0
2y-2x+1=0
所以
x=3/10
y=-1/5

1.已知x/x-1=(y²+4y-1)/(y²+4y-2),则y²+4y-x的值为多少? 已知x²-4x+4+(y+x的绝对值)=0,求x²y-x²分之2x+x²÷y²-2y+1分之x²+4x+4另外还有一题:已知x-3y=0,求x²-2xy+y²分之2x+y×(x-y)的值. [(x+2y)²-(x+y)(3x-y)-5y²]÷(2x),其中x,y满足x²+4x+y²-y+17/4=0已知、x+y=6且xy=4(1)x²+y² (2)(x-y)² (3)x{四次方}+y{四次方}第一题没错 书上就这样写的! 1·已知a+b+c=0且a²+b²+c²=1,求ab+bc+ac的值.2·已知x,y满足等式x²+y²-4x+y+17/4=0,求(x+y)²的值.3·已知x+y=5,x²+y²=13,求代数式x²y+2x²y²+xy²的值.4·若a²+b²+ 已知x²+4x+y²-2y+5=0,则x²+y²= 已知x-2y=15,xy=-25,求x²+4y²-1的值;已知x-y=5,(x+y)²=49,求x²+y²的值. 1、已知x-2y=15,xy=-25,求x²+4y²-12、已知x-y=5,(x+y)²=49,求x²+y²的值 计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy 已知4x²+y²-4x-6y+10=0,求(2x/3*√(9x)+y²√(x/y³))-(x²*√(1/x)-5x*√y/x))4x²+y²-4x-6y+10=0,4x²-4x+1+y²-6y+9=0(2x-1)²+(y-3)²=0x=1/2y=3这个我看不懂 已知,x²+2y²-2xy-4y+4=0,求x²+y²的值 已知(x+y)²;=8,(x-y)²;=4,求x²+y² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² + xY- 2Y² =求x² - 4x Y+ Y² = 已知x-y=1,求[(x+2y)²+(2x+y)(x-4y)-3(x+y)(x-y)]÷y的值 已知2x+3y=0,求代数式1.5x+4y/3x-2y 2.x²+xy-y²/x²-xy+y² 已知2x-y=10,求[(x²+y²)-(x-y)²+2y(x-y)]/4y已知2x-y=10,求[(x²+y²)-(x-y)²+2y(x-y)]/4y 就是已知2x-y=10,求[(x²+y²)-(x-y)²+2y(x-y)]/4y /4y就是除以4y 已知x²+y²-4x+6y+13=0,求x²+2y/x²-3y²的值 已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)²已知x²+y²-6x+4y+13=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)² 几道初二计算题1、2(x-1)²-(x+2)(x-2)2、[x(x²y²-xy)-y(x²-x³y)]÷3x²y3、分解因式 4a²-b²-2bc-c²4、已知x+y=6,xy=8,求x²+y²的值好久没做了