Răspuns:
[tex]((( {2}^{15} \times {3}^{13} \times {5}^{7} ) \div ( {2}^{15} \times {3}^{13} \times {5}^{7} ) - {2}^{4} \times 3 \div 8) \div 49 - 2) \div {2019}^{0} \\ \\ ((( {2}^{15 - 13} \times {3}^{13 - 12} \times {5}^{7 - 5} ) - 16 \times 3 \div 8) \div 49 - 2) \div 1 \\ \\ (( {2}^{2} \times 3 \times {5}^{2} ) - 48 \div 8) \div 49 - 2) \\ \\ (4 \times 3 \times 25) - 6) \div 49 - 2 \\ \\ (300 - 6) \div 49 - 2 \\ \\ 294 \div 49 - 2 \\ \\ 6 - 2 \\ \\ \boxed{ 4}[/tex]