Explicație pas cu pas:
[tex]a = {( - \frac{3}{4})}^{2} + \frac{3}{8} = \frac{9}{16} + \frac{3}{8} = \frac{9 + 3 \times 2}{16} = \frac{9 + 6}{16} = \frac{15}{16}[/tex]
[tex]b = \frac{5}{8} \times 0.4 + \frac{5}{8} \times 0.6 = \frac{5}{8} \times (0.4 + 0.6) = \frac{5}{8} \times 1 = \frac{5}{8}[/tex]
[tex]a = \frac{15}{16} \\ b = \frac{5}{8} = \frac{10}{16} \\ = > a > b [/tex]
