Q.2 (B)(ii) Find ‘ k ’ if x = 3 is a root of quadratic equation kx² - 10x + 3 = 0 .

Answer: k = 3 Since x = 3 is a root, it satisfies the equation : k(3)² - 10(3) + 3 = 0 9k - 30 + 3 = 0 9k = 27 , so k = 3 .

Find ‘\(k\)’ if \(x = 3\) is a root of quadratic equation \(kx^2 - 10x + 3 = 0\).

Q.2 (B)(ii) Find ‘\(k\)’ if \(x = 3\) is a root of quadratic equation \(kx^2 - 10x + 3 = 0\).

Doubtly Asked 25 Oct 2026 ssc 10th Save WhatsApp Report

Best answer

Answer: \(k = 3\)

Since \(x = 3\) is a root, it satisfies the equation :

\(k(3)^2 - 10(3) + 3 = 0\)

\(9k - 30 + 3 = 0\)

\(9k = 27\), so \(k = 3\).

Doubtly AI · 25 Oct 2026 AI-verified · Oct 2026 Report

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