7/8 x(-3)/8 x= 1/5+3/10

Lösung

\frac{7}{8} x \frac{- 3}{8} x = \frac{1}{5} + \frac{3}{10}

x = \frac{4 2}{21} i, x = - \frac{4 2}{21} i

Schritte zur Lösung

\frac{7}{8} x \frac{- 3}{8} x = \frac{1}{5} + \frac{3}{10}

Vereinfache

- \frac{21}{64} x^{2} = \frac{1}{5} + \frac{3}{10}

Teile beide Seiten durch

- \frac{21}{64}

\frac{- \frac{21}{64} x ^{2}}{- \frac{21}{64}} = \frac{\frac{1}{5} + \frac{3}{10}}{- \frac{21}{64}}

x^{2} = - \frac{32}{21}

Für

x^{2} = f (a)

sind die Lösungen

x = f (a), - f (a)

x = - \frac{32}{21}, x = - - \frac{32}{21}

- \frac{32}{21} = \frac{4 2}{21} i

- - \frac{32}{21} = - \frac{4 2}{21} i

x = \frac{4 2}{21} i, x = - \frac{4 2}{21} i

- 3 x < - 9 and x - 2 < 5

s im pl i f y \frac{13}{2}

\frac{r}{6} \leq 3

\frac{4}{7} d + 13 = - 22

\frac{5}{x + 2} \geq 1