Harvard interview question that will test your math skills

At first glance, the equation looks simple:

x² − y² = 36

But this problem is designed to make you stop, think, and look beyond the obvious.

In this video, we break down the mathematics step by step and uncover the reasoning behind the solution. If you enjoy tricky math problems, algebra questions, mathematical puzzles, interview questions, and challenging brain teasers, this one is for you.

Try solving it yourself before watching the full solution and see if you can spot the key idea!

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