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16. Compute greatest common divisor of ?5 − 1 and ?3 + 2? − 3 in...

16. Compute greatest common divisor of ?5 − 1 and ?3 + 2? − 3 in modulus 13.

17. Check whether the polynomial is ?5 − 4?3 + 3?2 − ? + 2 is reducible or irreducible in modulus 3, 5 and 13

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