Find a solution to the system of simultaneous equations
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Here's how I'd tackle this.
This quadratic has two solutions
You can substitute this back in (2) and also make (say) x the subject, and hence get an equation in y.
Last edited by bob bundy (2012-01-15 00:42:17)
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei