分式x-y/4y=(y-x)^2/(?)
分式的加减:[(x/y-y/x)除以(x+y)+x(1/y-1/x)]除以1+x/y,其中x=5,y=2
1/x-1/y=4,求分式(3x+xy-3y)/(x-2xy-y)
若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
初中数学分式已知x/y=2,求(x*x-xy+3y*y)/x*x+xy+6y*y的值
x-y分之2减去(x-y)的平方分之x+y 分式加减咋做啊?
2y/2x-3y中X、Y同时扩大五倍分式值( )
已知x+2y=11,x-2y=4,求分式[x/(x^2-2xy+y^2)]÷(x^2+xy+y^2)/(x^3-y^3)
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
已知x-5y=0,求分式【(3x+y)/(x的2次方-2xy+y的2次方)】×(y-x)的值
已知x=2011,y=2012,则分式(x+y)(x的平方+y的平方)分之x的4次方-y的4次方=?
已知x^2-xy-5y^2=0,求分式y/(x-y)-(x-y)/x的值
若x-y不等于0,2x-3y=0,则分式(10x-11y)/(x-y)的值是()?