oblicz
[(dwie piąte)do potegi 2 + 4 xtrzy ósme]-13 piećdziesiąych=
a drugie
(3i jedna druga -2i dwie trzecie) do potęgi 2+(dwie trzecie+siedem dziewiątych)=
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1.
![[tex][tex][\frac{2}{5}^{2} +4 \frac{3}{8}] - 13\frac{5}{10} = (\frac{4}{25}+\frac{35}{8}) - 13\frac{5}{10} = \frac{28}{40} - \frac{135}{10} = \frac{7}{10} - \frac{135}{10} = \frac{128}{10} = 12\frac{8}{10}\\2. [tex](3\frac{1}{2} - 2\frac{2}{3})^{2} + (\frac{2}{3} +\frac{7}{9}) = (\frac{21}{6} - \frac{16}{6})^{2} + (\frac{6}{9}+\frac{7}{9}) =( \frac{5}{6})^{2} + \frac{13}{9} = \frac{25}{36} + \frac{19}{13} = [tex][tex][\frac{2}{5}^{2} +4 \frac{3}{8}] - 13\frac{5}{10} = (\frac{4}{25}+\frac{35}{8}) - 13\frac{5}{10} = \frac{28}{40} - \frac{135}{10} = \frac{7}{10} - \frac{135}{10} = \frac{128}{10} = 12\frac{8}{10}\\2. [tex](3\frac{1}{2} - 2\frac{2}{3})^{2} + (\frac{2}{3} +\frac{7}{9}) = (\frac{21}{6} - \frac{16}{6})^{2} + (\frac{6}{9}+\frac{7}{9}) =( \frac{5}{6})^{2} + \frac{13}{9} = \frac{25}{36} + \frac{19}{13} =](https://tex.z-dn.net/?f=%5Btex%5D%5Btex%5D%5B%5Cfrac%7B2%7D%7B5%7D%5E%7B2%7D+%2B4+%5Cfrac%7B3%7D%7B8%7D%5D+-+13%5Cfrac%7B5%7D%7B10%7D+%3D+%28%5Cfrac%7B4%7D%7B25%7D%2B%5Cfrac%7B35%7D%7B8%7D%29+-%C2%A013%5Cfrac%7B5%7D%7B10%7D+%3D%C2%A0%5Cfrac%7B28%7D%7B40%7D+-%C2%A0%5Cfrac%7B135%7D%7B10%7D+%3D%C2%A0%5Cfrac%7B7%7D%7B10%7D+-%C2%A0%5Cfrac%7B135%7D%7B10%7D+%3D%C2%A0%5Cfrac%7B128%7D%7B10%7D+%3D+12%5Cfrac%7B8%7D%7B10%7D%5C%5C2.+%5Btex%5D%283%5Cfrac%7B1%7D%7B2%7D+-+2%5Cfrac%7B2%7D%7B3%7D%29%5E%7B2%7D+%2B+%28%5Cfrac%7B2%7D%7B3%7D+%2B%5Cfrac%7B7%7D%7B9%7D%29+%3D+%28%5Cfrac%7B21%7D%7B6%7D+-+%5Cfrac%7B16%7D%7B6%7D%29%5E%7B2%7D+%2B+%28%5Cfrac%7B6%7D%7B9%7D%2B%5Cfrac%7B7%7D%7B9%7D%29+%3D%28+%5Cfrac%7B5%7D%7B6%7D%29%5E%7B2%7D+%2B+%5Cfrac%7B13%7D%7B9%7D+%3D+%5Cfrac%7B25%7D%7B36%7D+%2B+%5Cfrac%7B19%7D%7B13%7D+%3D+)