Solve an equation of the form a x 2 b x c 0 by using the quadratic formula. When it is zero we get just ONE real solution both answers are the same. 3 Classification of Quadratic Functions.
Quadratic equations are also needed when studying lenses and curved mirrors.
X 2 3x 2 0. Let us look at an equation in vertex form. In addition there can be more than one unknown in the equation. Need more problem types.