144=7x+x^2
This actually factors quite nicely Melody: x2 + 7x - 144 → (x + 16)*(x - 9) so:
(x + 16)*(x - 9) = 0
x = -16 or x = 9
.
$$\\144=7x+x^2\\ x^2+7x-144=0\\ 1x^2+7x-144=0\\$$
I'd just use the quadratic formula to solve it
https://www.youtube.com/watch?v=O8ezDEk3qCg
a=1 b=7 and c=-144
just put x out the front - they didn't do that in the video.
So it does - thanks Alan.
The quadratic formula will still work though. :)
+118723 
