SOLUTION: Nine more than the cube of a number is the same as 81 times the number. Find the numbers.

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Question 1054473: Nine more than the cube of a number is the same as 81 times the number. Find the numbers.
Answer by ikleyn(52778) About Me  (Show Source):
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Nine more than the cube of a number is the same as 81 times the number. Find the numbers.
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x%5E3+-+81x+%2B9 = 0.



Plot y = x%5E3+-+81x+%2B9

There is no real rational roots.

The real root/roots is/are irrational.