Solve a quadratic equation by completing its square - Example 4

This is the last post on how to solve quadratic equations by completing their squares. This method builds the foundation to derive the quadratic formula.

Below are links to my previous posts on quadratic functions and equations;

https://steemit.com/steemiteducation/@mathworksheets/completing-the-square-of-a-quadratic-equation-3

https://steemit.com/steemiteducation/@mathworksheets/solving-quadratic-equations-by-completing-the-square-2

https://steemit.com/steemiteducation/@mathworksheets/solving-quadratic-equations-by-completing-the-square-1

https://steemit.com/steemiteducation/@mathworksheets/completing-the-square-of-a-quadratic-equation-algebrically

https://steemit.com/steemiteducation/@mathworksheets/completing-the-square-of-a-quadratic-function-geometrically

https://steemit.com/steemiteducation/@mathworksheets/how-to-solve-quadratic-equations-using-the-factoring-method

https://steemit.com/steemiteducation/@mathworksheets/graphing-the-simplest-quadratic-function  

https://steemit.com/steemiteducation/@mathworksheets/quadratic-functions-an-introduction