log_{7}(x^2+3x)=2

Lösung

lo g_{7} (x^{2} + 3 x) = 2

x = \frac{- 3 + 205}{2}, x = \frac{- 3 - 205}{2}

Dezimale

x = 5.65891 \dots, x = - 8.65891 \dots

Schritte zur Lösung

lo g_{7} (x^{2} + 3 x) = 2

Wende die log Regel an

x^{2} + 3 x = 49

Löse

x^{2} + 3 x = 49 : x = \frac{- 3 + 205}{2}, x = \frac{- 3 - 205}{2}

x = \frac{- 3 + 205}{2}, x = \frac{- 3 - 205}{2}

6 lo g_{x} (27) = 18

lo g_{x} (2) = 0.3562

lo g_{x} (\frac{1}{81}) = - \frac{2}{3}

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

lo g_{2} (4 x) = 6