log_{10}(x^2-15x)=2

Lösung

lo g_{10} (x^{2} - 15 x) = 2

x = 20, x = - 5

Schritte zur Lösung

lo g_{10} (x^{2} - 15 x) = 2

Wende die log Regel an

x^{2} - 15 x = 100

Löse

x^{2} - 15 x = 100 : x = 20, x = - 5

x = 20, x = - 5

lo g_{2} (\frac{x}{6}) = 8

lo g_{5} (y) = - 2

(ln (x))^{2} = 2 ln (x)

lo g_{10} (x + 3) = 2

ln (x + 3) - ln (x - 2) = ln (x)