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Nullstellen von x2-1,6+0,2=0

Gesucht sind die Nullstellen von

$$x^2-1.6+0.2 = 0 \\
x^2 - 1.4 = 0 \quad | \quad +1.4\\
x^2 = 1.4 \quad | \quad \pm\sqrt{} \\
x_{1,2}= \pm\sqrt{1.4} \\
x_{1,2}= \pm 1.18321595662 \\
\boxed{x_1 = 1.18321595662 \ oder \ x_2 = -1.18321595662}$$

Die beiden Nullstellen von $$x^2-1.6+0.2 = 0$$ lauten $$x_1 = 1.18321595662$$ und $$x_2 = -1.18321595662$$

 
heureka  Nov 24, 2014
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