Wiki-Quellcode von Lösung Quadratische Gleichungen
Zuletzt geändert von akukin am 2025/07/10 10:07
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author | version | line-number | content |
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1.1 | 1 | **Zwei Lösungen: D > 0** |
2 | |||
3 | 1.a) {{formula}}x_1 = -2; \ x_2 = 0,5{{/formula}} {{formula}}\text{L} =\{-2; 0,5\}{{/formula}} | ||
4 | 1.b) {{formula}}x_1 = -3; \ x_2 = 1{{/formula}} {{formula}}\text{L} =\{-3; 1\}{{/formula}} | ||
5 | |||
6 | **Eine Lösung: D = 0** | ||
7 | |||
8 | 2.a) {{formula}}x_{1,2} = 6{{/formula}} {{formula}}\text{L} = \{6\}{{/formula}} | ||
9 | 2.b) {{formula}}x_{1,2} = 5{{/formula}} {{formula}}\text{L} =\{5\}{{/formula}} | ||
10 | |||
11 | **Keine Lösung: D < 0** | ||
12 | |||
13 | 3.a) {{formula}}\text{L} = \emptyset{{/formula}} | ||
14 | 3.b) {{formula}}\text{L} = \emptyset{{/formula}} | ||
15 | |||
16 | |||
17 | **Effektivstes Verfahren** | ||
18 | |||
19 | 4.a) {{formula}}x_1 = -\sqrt{12} \, (= -2\sqrt{3}); \, x_2 = \sqrt{12} \, (= 2\sqrt{3}){{/formula}} **Wurzel ziehen** | ||
20 | {{formula}}\text{L} = \{-\sqrt{12}; \sqrt{12}\}{{/formula}} | ||
21 | 4.b) {{formula}}x_1 = -3; \ x_2 = 3{{/formula}} {{formula}}\text{L} = \{-3; 3\}{{/formula}} | ||
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25 | 5.a) {{formula}}x_1 = -0,75; \, x_2 = 0,5{{/formula}} {{formula}}\text{L} = \{-0,75; \, 0,5\}{{/formula}} **Satz vom Nullprodukt** | ||
26 | 5.b) {{formula}}x_1 = -2; \, x_2 = 6{{/formula}} {{formula}}\text{L} = \{-2; \, 6\}{{/formula}} | ||
27 | |||
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29 | 6.a) {{formula}}x_1 = 0; \, x_2 = 1,5{{/formula}} {{formula}}\text{L} = \{0; \, 1,5\}{{/formula}} **Ausklammern und Satz vom Nullprodukt** | ||
30 | 6.b) {{formula}}x_1 = 0,2; \, x_2 = 0{{/formula}} {{formula}}\text{L} = \{0; \, 0,2\}{{/formula}} | ||
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