作业帮若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值
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若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值
若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值
若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值
绝对值和平方都不可能为负数,所以和等于0,必须,5X-2Y-3=0,X+6Y-11=0
X＝5/4,Y=13/8
|5x-2y-3|+(x+6y-11)X(x+6y-11)=0
因为绝对值大于等于0
（x+6y-11)X(x+6y-11）大于等于0
所以|5x-2y-3|=0
(x+6y-11)X(x+6y-11)=0
所以5x-2y=3
x+6y=11
x=5/4
y=13/8
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2
因式分解x次方-y次方+5x-y+6【x-y+2】【x+y+3】
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值
若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值,
解方程组：3(x+y)+2(x-y)=11,6(x+y)-5(x-y)=13.
大括号x+y/2+x-y/3=11/6 4(x+y)-5(x-y)=7 快
若5x+3y=3x+4y=x+2y+6,则x+y=___
3x+2y=10.5 6x+5y=11y=x=
若｜5x-2y-3｜+（x+6y-11）=0成立,求x,y的值
若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7
化简:5(x-y)+2(x+y)-3(x-y)
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