View Completing the Square and the Quadratic Formulapdf from MATH 022 at American University. Use x 2 8x to make a perfect square trinomial. A x 2 b x c 0.
For example x²6x5 isnt a perfect square but if we add 4 we get x3².
We can derive the quadratic formula by completing the square. Lets explore this step by step together. You da real mvps. Step 2 Move the number term ca to the right side of the equation.