0,75 + \(\frac{9}{5}\) ( 1,5 - \(\frac{2}{3}\) )²

= 0,75 + \(\frac{9}{5}\) ( \(\frac{3}{2}\) - \(\frac{2}{3}\))²

= 0,75 + \(\frac{9}{5}\) (\(\frac{5}{6}\))²

= 0,75 + \(\frac{5}{4}\)

= 0,75 + 1,25

= 2 

\(\frac{- 22}{25}\) + ( \(\frac{22}{7}\) - 0,12)

= \(\frac{- 22}{25}\) + ( \(\frac{22}{7}\) - \(\frac{3}{25}\))

= \(\frac{- 22}{25}\) + \(\frac{22}{7}\) - \(\frac{3}{25}\)

= - ( \(\frac{22}{25}\) + \(\frac{3}{25}\)) + \(\frac{22}{7}\)

= -1 + \(\frac{22}{7}\)

= \(\frac{- 7}{7}\) + \(\frac{22}{7}\)

= \(\frac{15}{7}\)