((n+1)!)/((n-1)!)=56

Lösung

\frac{( n + 1 ) !}{( n - 1 ) !} = 56

n = 7, n = - 8

Schritte zur Lösung

\frac{( n + 1 ) !}{( n - 1 ) !} = 56

Vereinfache

\frac{( n + 1 ) !}{( n - 1 ) !} : n (n + 1)

n (n + 1) = 56

Löse

n (n + 1) = 56 : n = 7, n = - 8

n = 7, n = - 8

\frac{x}{x - 2} = 0

\frac{3}{5} = \frac{3}{x}

\frac{x}{x + 6} = \frac{4}{x - 4}

\frac{t - 1}{1 - t} = \frac{3}{2}

5 x - \frac{10}{x} = 4