An equation where the highest exponent of the variable (usually "x") is a square (^{2}).

So it will have something like x^{2}

But **not** x^{3} etc.

A Quadratic Equation is usually written a**x ^{2}** + b

**x**+ c = 0

Example: 2

**x**+ 5

^{2}**x**− 3 = 0