# Literal Equation

## Literal Equation

An equation in which the coefficient and the constant terms are represented by letters.

General equations or standard equations and other parametric equations are examples of literal equations.

### Example

The literal equation $${x^2}$$ + px + q = 0 has the roots :

$$x_{1} = \dfrac{-p + \sqrt{{p}^{2} − 4q}}{2}$$   and  $$x_{2} = \dfrac{-p − \sqrt{{p}^{2} − 4q}}{2}$$