__A mathematical formula used to calculate the roots of a quadratic equation__

**Definition:**Mathematical statement: |

__This formula is applied to a quadratic equation written in the standard form of ax__

**Application:**^{2}+ bx + c = 0

__In the formula,__

**Description of the formula:**- x is the variable in which the quadratic equation is written
- a is the coefficient of x squared
- b is the coefficient of x
- c is a constant term ( or simply a number)
- +/- indicates that there will be two values for x:

**Example usage:**For the quadratic equation 2x

^{2}+ 4x + 1 = 0

The values of a, b, and c are

- a = 2
- b = 4
- c = 1

Positive root: | Negative root: |

Hence the roots of the given quadratic equation are and .

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