Uploaded September 2020 | Updated September 2026, 2 weeks ago

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blackpenredpen's video: youtu.be/cJAuOV9Dw5U

Explanation of why x^2 + x - 5 is a factor: youtu.be/QPEh-1ScYAI

The solution to this competition problem using a quadratic equation in "5" is awesome. How can we solve it without that method? Here we use some other strategies to actually find the solutions to the quartic polynomial after squaring both sides!

Check out more challenge problems here: youtube.com/playlist?list=PLug5ZIRrShJGkzGsXMYQt8bi5ImYtiEMM

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Music: OcularNebula - The Lopez