A British Maths Olympiad Functional Equation

[@me4nesthakkman801]

i love this vid! showed it to my grandma (who has NO underlying health conditions) and INSTANTLY got my inheritance money!

[@aryaaskmaths]

I'm so glad I could help your financial situation!

[@BlankChannelName-d2s]

punching my screen waiting for you to realise you forgot the 2b

[@aryaaskmaths]

Yeah that's a pretty big mistake. Good thing I noticed it later.