5^{x-9}=0.2

Lösung

5^{x - 9} = 0.2

x = 8

Schritte zur Lösung

5^{x - 9} = 0.2

5^{x - 9} = \frac{1}{5}

Wende Exponentenregel an

x - 9 = - 1

Löse

x - 9 = - 1 : x = 8

x = 8

2^{x + 1} + 2^{x - 1} = \frac{5}{2}

3^{2 x} + 7 = 3^{x} + 1

\frac{9 ^{2 x}}{3 ^{x}} = 27

2^{x} + 2^{2 - x} - 5 = 0

2^{x^{3}} = 6 4^{x}