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/ Divide by 5: \(v^2 - 40v - 480 = 0\).
Divide by 5: \(v^2 - 40v - 480 = 0\).
February 22, 2026
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Simplify: \(120v + 2400 + 180v = 5v^2 + 100v\).
Combine terms: \(300v + 2400 = 5v^2 + 100v\).
Rewrite: \(5v^2 - 200v - 2400 = 0\).
\(v = \frac{40 \pm \sqrt{1600 + 1920}}{2}\).
\(v = \frac{40 \pm \sqrt{3520}}{2}\).
\(v = \frac{40 \pm 59.33}{2}\).
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