Răspuns:
[tex]( - \frac{5}{12} - \frac{13}{20} ) ^{2} \times ( - 1 \frac{13}{32} ) = \\ ( - \frac{25}{60} - \frac{39}{60} ) ^{2} \times ( - \frac{45}{32}) = \\ ( - \frac{64}{60} ) ^{2} \times ( - \frac{45}{32} ) = \\ ( - \frac{16}{15} ) ^{2} \times ( - \frac{45}{32} ) = \\ ( \frac{3}{2} ) ^{2} = \frac{9}{4} [/tex]
