Explicație pas cu pas:
a)
[tex] {( \frac{14}{10}) }^{2} \div 3.5 + \frac{14}{10} = \\ \frac{196}{100} \div \frac{35}{10} + \frac{14}{10} = \\ \frac{196}{100} \times \frac{10}{35} + \frac{14}{10} = \\ \frac{28}{10 \times 5} + \frac{14}{10} = \\ \frac{28}{50} + \frac{70}{50} = \\ \frac{98}{50} = \frac{49}{25} [/tex]
c)
[tex] - \frac{14}{10} + \frac{14}{10} + | - \frac{14}{10} | = \frac{14}{10} = \frac{7}{5} [/tex]
b)
[tex] \frac{14}{10} \times {( \frac{35}{10} )}^{ - 1} - \frac{14}{10} = \\ \frac{14}{10} \times \frac{10}{35} - \frac{14}{10} = \\ \frac{2}{7} - \frac{2}{7} = 0[/tex]
d)
[tex] - \frac{35}{10} \div ( { \frac{35}{10}) }^{ - 1} + | \frac{35}{10} | \div ( { \frac{35}{10}) }^{ - 1} = \\ - \frac{35}{10} \div \frac{10}{35} + \frac{35}{10} \div \frac{10}{35} = 0[/tex]
