77=15^x

Lösung

77 = 1 5^{x}

x = \frac{ln ( 77 )}{ln ( 15 )}

Dezimale

x = 1.60403 \dots

Schritte zur Lösung

77 = 1 5^{x}

Wende Exponentenregel an

ln (77) = x ln (15)

Löse

ln (77) = x ln (15) : x = \frac{ln ( 77 )}{ln ( 15 )}

x = \frac{ln ( 77 )}{ln ( 15 )}

e^{(l n (0.4)) t} = 0.7

so l v e f or n, 128 = 2^{n - 1}

e^{x + 3} = 2

(\frac{1}{2})^{x} = - 4

2^{x} + 2^{x} + 2^{x} = 192