You'll find the answer in a 'trial and error' way.
The equation is basically x³-x²=294
All you have to do is replace the x with one number.
The answer is 7³-7²=294
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27
-- If the number is more than ' 1 ', then yes. -- If the number is ' 1 ' or less, including negative numbers, then no.
How about 27 whose cube root is 3 which is a rational whole number.
a perfect cube
no