Im having trouble doing this.
It says leave answer in surd form
i rearranged the first to equal
then substitute it into the second
then expand it all which i got
then i dont know what to do
Quadratic simultaneous equations watch
- Thread Starter
- 27-09-2010 21:23
- 27-09-2010 21:43
Have you learnt the quadratic formula yet?
That's what you have to use to solve the equation.
- 27-09-2010 21:44
Notice that 13 divides 13, 78 and 143, so divide through by 13; then use the quadratic formula.