若2^x=3,4^y=5,求2^x-2y 的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/18 23:26:06
xN@_h0iC3tlRCuBda1фI\(R
oوjs_f{/Jt뵪RA$>+(?{Z(?J?;^x ͡+hsNf
(s"`:*t$wӳ~7oW7v.1hN.Ul\ɮlȺ]oFyp{4ZcpkgScq#<=lkRG#^ԣv.`%lǵ0fago/(xN 1C)0&**MA
5Z&)D,SN08SPbÕ(\,,t"RPf2ATCniZ*K":'oz/.)
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
若(x*x+y*y)(x*x+y*y)-4x*x*y*y=0,求代数式(x*x+5xy+y*y)/(x*x+2xy+y*y)的值
若2x-3y=0,求5x+4y/3x-2y
(x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5)
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
若x-y/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值
若x+y分之x-y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值
若x-y分之x+y=3,求式子x+y分之5(x-y)—2(x-y)分之x+y的值
已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y
{(x+y)/2+(x-y)/3=1,(x+y)-5(x-y)=2.求x=?,y=?
4x-3y=5 x^2+y^2=1 求x,y
求5x-2y=x-y=4x-3y-2的解
3x+4y-5=0 x^2+y^2=1求x.y
若x^5+x^4y+x^4+x+y+1=0,且3x+2y=1,求x,y的值
5x+y=2,x-3y=4,求x和y,
5x+y=2 x-3y=4 求x和y
方程式计算5X-2=Y 4X+3=Y 求X.Y
已知x,y>0 2x+y+3=xy 求5x+4y最小值