Is ?n ? Z, 3 | (n³ - 7n +3), n >= 0 true or false?

bob1

Active member
Is ?n ? Z, 3 | (n³ - 7n +3), n >= 0 true or false

If it is true, prove it using mathematical induction; if it is false give a counterexample.

Thank you for your help and I will give points.
 
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