x,y满足x^2+xy=35;求x,y值
正整数x,y满足x2-y2=2xy,求x-y/x+y的值
整数x,y满足x2-y2=2xy,求x-y/x+y的值
若x,y满足x^+2y^-2xy+1=0,求xy的值
正数xy满足x2-y2=2xy,求x+y分之x-y的值
正数x,y满足x^2-y^2=2xy,求(x-y)/(x+y)的值
若正数x,y满足x平方-y平方=2xy,求x-y除以x+y的值
若正数x,y满足x²-y²=2xy,求(x-y)/(x+y)的值
正数x、y满足x平方减去y平方=2xy,求(x-y)/(x+y)的值
正数x,y满足x²-y²=2xy,求x-y/x+y的值
已知实数x y满足x×x+y×y-xy+2x-y+1=0 试求x y的值
已知x和y是正整数,并且满足条件xy+x+y=71,x^2y +xy^2=880,求x^2+y^2的值
已知x,y均为实数,且满足xy+x+y=17,x^2y+xy^2=66,求x^2+y^2的值.