67=21^x

Lösung

67 = 2 1^{x}

x = \frac{ln ( 67 )}{ln ( 21 )}

Dezimale

x = 1.38106 \dots

Schritte zur Lösung

67 = 2 1^{x}

Wende Exponentenregel an

ln (67) = x ln (21)

Löse

ln (67) = x ln (21) : x = \frac{ln ( 67 )}{ln ( 21 )}

x = \frac{ln ( 67 )}{ln ( 21 )}

so l v e f or y = b + a e^{- x}, x

2^{x^{2}} = 8

64 = 3 2^{- x + 2}

ln (e^{x}) = 15

ln (e^{x}) = 28