If \(x + \frac{1}{x} = 5\), find the value of \(x^3 + \frac{1}{x^3}\).

A. 115

B. 110

C. 125

D. 140

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cpo Save WhatsApp Report

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Answer: B. 110

Answer: (B) 110

\(x^3 + \frac{1}{x^3} = \left(x + \frac{1}{x}\right)^3 - 3\left(x + \frac{1}{x}\right) = 125 - 15 = 110\).

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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