设xy是有理数,且xy满足x²+2y-根号2乘y=17+4根号2,求x-y的值要有详细的过程
问题描述:
设xy是有理数,且xy满足x²+2y-根号2乘y=17+4根号2,求x-y的值
要有详细的过程
答
设xy是有理数,且xy满足x²+2y-根号2乘y=17+4根号2,求x-y的值
要有详细的过程