MathDB

18

Part of 2002 National Olympiad First Round

Problems(1)

P18 [Number Theory] - Turkish NMO 1st Round - 2002

Source:

8/10/2014
For how many integers xx is ∣15x2−32x−28∣|15x^2-32x-28| a prime number?
<spanclass=′latex−bold′>a)</span> 0<spanclass=′latex−bold′>b)</span> 1<spanclass=′latex−bold′>c)</span> 2<spanclass=′latex−bold′>d)</span> 4<spanclass=′latex−bold′>e)</span> None of above <span class='latex-bold'>a)</span>\ 0 \qquad<span class='latex-bold'>b)</span>\ 1 \qquad<span class='latex-bold'>c)</span>\ 2 \qquad<span class='latex-bold'>d)</span>\ 4 \qquad<span class='latex-bold'>e)</span>\ \text{None of above}