Răspuns:
[tex]( - \frac{2}{5} )^{2} = \frac{4}{25} [/tex]
[tex]( - 1.5) = - \frac{15}{10} = - \frac{3}{2} [/tex]
4/25 × [1/6 + 1/4 × (-2/3)] =
4/25 × (1/6 - 1/6) =
4/25 × 0 =
0
