Solving a Functional Equation

This video is about a Functional Equation My merch: https://teespring.com/stores/sybermath?page=1 Follow me: https://twitter.com/SyberMath Subscribe!!!: https://www.youtube.com/SyberMath?sub_confirmation=1 Send me a tweet at @SyberMath if you want to share a picture of your solution/ideas and comment here with the link to the tweet. #ChallengingMathProblems #FunctionalEquations EXPLORE: Inscribing a circle between two equilateral triangles: https://youtu.be/3ESXW6qzAS4 Solving a quadratic system of equations (a challenge in algebra): https://youtu.be/QAqbRDpxbFM A Diophantine Equation (x^2-xy+y^2=x+y): https://youtu.be/hsWBUufU4WY