Learning to solve a quadratic by factoring a perfect square trinomial

The video tutorial explains how to solve quadratic equations by setting them to zero and explores both the long method and a simplified approach using perfect squares. It demonstrates factoring and solving the equation, highlighting the importance of identifying perfect squares and factoring out the greatest common factor (GCF).

What are the two numbers that add up to 4 and multiply to give 16 in the context of this quadratic equation?

Describe the final steps to solve the equation after factoring it into a perfect square.