Using Algebra to Complete the Square of a Quadratic Equation

Very easy to solve quadratic equations if we know how to complete their square using algebra. Actually the quadratic formula is derived using this skill. Below is a lesson to use this skill

Below are the links to my previous posts on quadratic functions;

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