(1)若|3x-6|+(y+3)²=0,则x-3y=?(2)若|x|=0.5,y²=16,且xy<0
若X>1,Y>0,且满足XY=X的Y次方,X/Y=X的3Y次方,则X+Y等于?
x>1,y>0,且满足xy=x^y,x/y=x^3y,求x+y
(1)若|3x-6|+(y+3)²=0,则x-3y=?(2)若|x|=0.5,y²=16,且xy<0
若x>1,y>0,且满足 xy=x^y,x/y大于等于x^3y,则y则 最大值
若x,y为实数,且根号x+y+3+x-y-2绝对值=0,则xy=
若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
已知x-y=3xy,且xy不等于0,则-3x+6xy+3y/(7x-5y)-9xy-(3x-y)
1.若x分之1-y分之1=2,则求x-xy-y分之3x+xy-3y=0的值.2.设x,y为实数,且x-y=3.求x乘根号
若x>0,y>0,且√x(√x+√y)=3√y(√x+5√y),求(2x+2√xy+3y)/(x-√xy+y)的值.
2x²-3xy=y²=0(x,y不得o)求x/y+y/x
设A=2x-3xy+y+x-3y,B=4x-6xy+2y+4x-y,若|x-3a|+(y+3)=0,且B-2A=a.求A
设A=2x方-3xy+y方-x+2y,B=4x方-6xy+2y方+3x-y.若|x-2a|+(y+3)的平方=0,且B-