27^{x-1}=9^{2x}

Lösung

2 7^{x - 1} = 9^{2 x}

x = - 3

Schritte zur Lösung

2 7^{x - 1} = 9^{2 x}

Wende Exponentenregel an

3 (x - 1) = 4 x

Löse

3 (x - 1) = 4 x : x = - 3

x = - 3

5^{1 - 2 x} = 9

3^{x} = 500

4^{x} = 128

3^{x} = 23

2^{x + 3} + 4^{x + 1} = 320