perplexus.info :: Just Math : Rational Rubric

Rational Rubric (Posted on 2015-03-01)

Prove that the only rational solution to the equation:
A³ + 3*B³ + 9*C³ = 3*A*B*C
is A=B=C=0

See The Solution Submitted by K Sengupta

Rating: 4.5000 (2 votes)

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It's all Greek to me

Comment 2 of 2 |

By the way, this reminds me a lot of the proof that the square root of 2 is not rational.

Posted by Steve Herman on 2015-03-01 18:46:09

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