(3x+2)^2-2x^2=0;(y+3)(1-3y)=-1+2y^2因式分解解方程
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/08 08:05:55
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x(x-y)2-(y-x)3
3^x+2x=y,x
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
(x+y)(x-y)+(x-y)平方-(x-y)(3x-y) 其中x=-2 y=3分之一
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
先化简,再求值 [2/3x - 2/x+y(x+y/3x -x-y)]*x/x-y,其中5x+3y=0
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
先化简,再求值:[3x-2/x+y(x+y/3x-x-y)]/(x-y/x),其中5x+3y=0
(x+y)(2x-3y)=?
已知x-3y=0,求(2x+y)/(x^2-2xy+y^2)X(x-y)
y=x(3-2x) (0
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
若2x-3y+4=0则x(x*x-1)+x(5-x*x)-6y+7
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
7y(x-3y)-2(3y-x)=0 .x=?,y=?