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4. DETERMINATI NUMARUL NATURAL X STIIND CA SOLUTIE A ECUATIEI : 
(2∧3 X 3)∧2 + 5∧2 ORI X = 626


Răspuns :

[tex](2^{3}*3)^{2}+5^{2}*x=626 \\ (8*3)^{2} + 25 * x = 626 \\ 576 + 25 * x = 626 \\ 25 * x = 50 \\ x=2.[/tex]