Where does the QUADRATIC FORMULA come from? | Completing the Square

Did you already know where the quadratic formula comes from? My favorite part was visualizing "completing the square" with literal squares! I was inspired to include that because of a recent Veritasium video. I tried to include enough information and details so that someone who wasn't confident in mathematics could still follow along, but I hope I didn't end up overexplaining and making it too confusing with the extra details. I'm just trying to find a balance where I can reach people on all ends of the mathematics experience spectrum! This video and my last were over 10 minutes long, so for my next video I think I'll find a topic that is more short and sweet. :) Whether you're already a lover of mathematics, or you're someone who thinks math is the farthest thing from "cool", I hope you stick around, learn something new, or just find something to appreciate about the mathematics all around us. Tell me what other proofs or videos you'd like to see on my channel!