# How do you find the value of c that makes #x^2-13x+c# into a perfect square?

##### 2 Answers

Apr 13, 2017

#### Explanation:

Half the coefficient of x which would be

The perfect square would be

Apr 13, 2017

#### Explanation:

This is the process called 'completing the square'

A quadratic trinomial is in the form

To make a perfect square, add on

In this case