A few weeks ago I posted this “powerful” problem:
Now, allow me to give you a major hint. Consider the simpler equation
What are the possible values of and ? Here are the possible combinations:
- and is anything
- and is any nonzero number
And here’s the tricky one that most people forget:
- and is even
You now have enough information to solve the original equation. I think you’ll be delighted with the solution!