不好意思,已知有理数x、y满足x=|y|,|xy|+xy=0,化简|y|+|-2x|-|3y-2x|=?
不好意思,已知有理数x、y满足x=|y|,|xy|+xy=0,化简|y|+|-2x|-|3y-2x|=?
已知正实数x y满足x-根号xy-2y=0求 x+3根号xy+2y/2x-2根号下xy-y
已知非零有理数x,y满足x²-4xy+4y²=0,求x-y/x+y-y-x/x+y的值.
已知xy是有理数,且满足/3-x/+/y+15/=0,求3x+2y的值
已知xy满足约束条件y=2 2X+y
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知3x*+xy-2y*=0,求(x/y)-(y/x)-(x*+y*)/(xy)的值.*是平方
已知有理数x,y满足xy=4,x+y=7,则x²y+xy²=()?
已知3x^2+xy-2y^2=0,求{(x+y)/(x-y)+4xy/(y^2-x^2)}/{(x+3y)*(x-y)}
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
已知有理数X.Y满足|2X+1|+(1/2Y-6)²=0,求代数式2X²Y-1/3XY²的
已知实数x、y满足2x2-7xy+3y2=0,求x:y