Question

(2n+3) | 121 dererminati-l pe n

Answer 1

2n+3 aprtine divizorilor lui 121 2n+3 aprtine {1,11,121}|-3 2n aprtine {-2,8,118}|:2 n apartine {-1,4,59} Dar n apartine lui N=>n={4;59}