若3X+2Y=0(XY≠0)则代数式2X+3Y/2X-3Y=若3X+2Y=0,则代数式2X+3Y/2X-3Y=?(XY不等于0)

已知x-y=4xy且xy≠0,求代数式-x-2xy+y分之2x+3xy-2y的值 若实数x,y满足根号x-2 +(3-y)^2=0,则代数式xy-x的值为 若(3xy+2)^2+|7-x-y|=0,求代数式(5xy+10y)-[-5x-(4xy-2y+3x)]的值 若(3xy+2)+|7-x-y|=0,求代数式（5xy+10y）-[-5x-（4xy-2y+3x）]的值. 计算:若2x+y=0,则代数式4x³+2xy(x+y)+y³ 已知x^2-3y^2=2xy(x>0,y>0),求代数式x+2y/x-y 已知xy/x+y=1/2,则代数式3x-5xy+3y/-x+3xy-y= 已知xy/x+y=3,则代数式2x-7xy+2y/-x+xy-y的值是多少? 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 已知2x+3y=0,求代数式1.5x+4y/3x-2y 2.x²+xy-y²/x²-xy+y² 若有理数x、y满足|4-2x|+(Y-3X)²=0,则代数式x²-2xy+y²的值为 若（xy-2)²+|3-y|=0,求代数式（5xy-3y)-[5x-(4xy+2y-5x)]的值. 若(x-1)²+|-y+2x|=0,则代数式2xy/x+y的值是? 已知：x－2xy－8y=0(x≠0,y≠0),则代数式2x+3y/2y= 若3X+2Y=0(XY≠0)则代数式2X+3Y/2X-3Y=若3X+2Y=0,则代数式2X+3Y/2X-3Y=?(XY不等于0) 己知x平方+3xy一4y平方=0(y≠0)求代数式(1)y分之x(2)x+y分之x一y 已知xy/x+y=2,则代数式3x-5y+8y/-x+3xy-y的值 已知xy满足(x+1)^2+y-2=0 求代数式-2xy+(1/2x^2y^2-3y)*2x+6xy