0.3+0.08x-0.0012x^2=0

Lösung

0.3 + 0.08 x - 0.0012 x^{2} = 0

x = - \frac{- 0.08 + 0.00784}{0.0024}, x = \frac{0.08 + 0.00784}{0.0024}

Dezimale

x = - 3.55990 \dots, x = 70.22657 \dots

Schritte zur Lösung

0.3 + 0.08 x - 0.0012 x^{2} = 0

Schreibe in der Standard Form

a x^{2} + b x + c = 0

- 0.0012 x^{2} + 0.08 x + 0.3 = 0

Löse mit der quadratischen Formel

x_{1, 2} = \frac{- 0.08 \pm 0.0 8 ^{2} - 4 ( - 0.0012 ) \cdot 0.3}{2 ( - 0.0012 )}

0.0 8^{2} - 4 (- 0.0012) \cdot 0.3 = 0.00784

x_{1, 2} = \frac{- 0.08 \pm 0.00784}{2 ( - 0.0012 )}

Trenne die Lösungen

x_{1} = \frac{- 0.08 + 0.00784}{2 ( - 0.0012 )}, x_{2} = \frac{- 0.08 - 0.00784}{2 ( - 0.0012 )}

x = \frac{- 0.08 + 0.00784}{2 ( - 0.0012 )} : - \frac{- 0.08 + 0.00784}{0.0024}

x = \frac{- 0.08 - 0.00784}{2 ( - 0.0012 )} : \frac{0.08 + 0.00784}{0.0024}

Die Lösungen für die quadratische Gleichung sind:

x = - \frac{- 0.08 + 0.00784}{0.0024}, x = \frac{0.08 + 0.00784}{0.0024}

x (x + 6) + 2 x (x + 4) = x^{2} + 8

x^{2} - 23 x + 4 = 0

8 x - 3 = 2 x^{2} + 3

4 x^{2} = 2 (x + 1)

so l v e f or x, x^{2} y^{2} - 2 x y - 6 = 0