East Lothian is one of 32 unitary council regions in Scotland. It borders onto City of Edinburgh, Scottish Borders and Midlothian. Its administrative capital is Haddington, and its large town is Musselburgh.
... is equivalent to
<math>x^2+\frac{b}{a}x=-\frac{c}{a}.</math>
The equation is now in a form in which we can conveniently complete the square[?]. T ...