You are Here: Home >< Maths

# Simultaneous equation watch

1. x^2 - y^2 =14
xy = 24
What’s x and y equal to? Why my teacher says there are no real roots?
2. (Original post by XchickenX)
x^2 - y^2 =14
xy = 24
What’s x and y equal to? Why my teacher says there are no real roots?
and from eq (2) we get that . Sub the prev. one in which yields a quartic, which is a disguised quadratic, of . This indeed has two real roots, and hence you can find their counterparts via eq (2)

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: February 28, 2018
Today on TSR

### University open days

• University of East Anglia (UEA)
Could you inspire the next generation? Find out more about becoming a Secondary teacher with UEA… Postgraduate
Thu, 18 Oct '18
• University of Warwick
Sat, 20 Oct '18
• University of Sheffield
Sat, 20 Oct '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams