The problem of this contest was:
This equation can be factored to:
n⁸ × (4n² - 2n - 1) = 0
→ n = 0 OR (4n² - 2n - 1) = 0
As @mobi72 discovered you can use the quadratic formula on the right one and get:
n = 0 OR n = -¼ ±√(1/16 + 1/4) = -¼ ±√(5/16) = (-1 ±√5)/4
↓
(0), ((-1 +√5)/4), ((-1 -√5)/4)
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| Name | solutions found | comment |
|---|---|---|
| n = 0 | As always going for the trivial solution only… | |
| all 3 | ||
| all 3 |
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Congratulations @sparkesy43 you won 1 SBI!
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