1.x^2-6x-2y+11=0

题目

1.x^2-6x-2y+11=0
2x-y+1=0
2.x^2-xy-2y=0
7x^2-y^2-x-1=0
3.x^2-2y^2-y=1
2x^2-4y^2+x=6
最好有过程,注意是方程组!

答案

1.x^2-6x-2y+11=0 2x-y+1=0 解方程组得：[x,y]= solve('x^2-6*x-2*y+11=0','2*x-y+1=0 ')x =91y =1932.x^2-xy-2y=0 7x^2-y^2-x-1=0 [x,y]= solve('x^2-x*y-2*y=0 ','7*x^2-y^2-x-1=0 ')x =-7/4+1/4*33^(1/2)-7/4-1/4...