3个回答
展开全部
x^2-y^2-y=4 (1)
x-2y=0 (2)
sub (2) into (1)
x^2-y^2-y=4
(2y)^2-y^2-y=4
3y^2-y-4=0
(3y-4)(y+1)=0
y=4/液判扒闹昌冲此3 or -1
(x,y) = (8/3,4/3) or (2,1)
x-2y=0 (2)
sub (2) into (1)
x^2-y^2-y=4
(2y)^2-y^2-y=4
3y^2-y-4=0
(3y-4)(y+1)=0
y=4/液判扒闹昌冲此3 or -1
(x,y) = (8/3,4/3) or (2,1)
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询