| Thanks, Soroban |
After last week's problem, Soroban emailed me a more 'generalized' statement, from which this week's problem is derived.
Let x, y be integers.
Prove: If a + bi = (x + yi)3 then
a2 + b2 is a perfect cube.
For those of you who solved last week's problem, this one should be easy; if you had trouble with last week's, check the solution, and that should help you solve this one!
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Problem Moderated by: Douglas |
| Show Problem Solution |
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