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Ivenika [448]
3 years ago
13

="absmiddle" class="latex-formula">
Mathematics
1 answer:
Natalija [7]3 years ago
5 0

Answer:

Step-by-step explanation:

n² + 3n - 18 = 0

n = [-3 ±√(3²-4(1)(-18)]/[2(1)] = [-3 ±√81]/2 = 3, -6

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