Out of the following equations, find the equation having the sum of its roots -5.

Choose the correct answer.

(A) \(3x^2 - 15x + 3 = 0\) (B) \(x^2 - 5x + 3 = 0\) (C) \(x^2 + 3x - 5 = 0\) (D) \(3x^2 + 15x + 3 = 0\)

Doubtly Asked 24 Oct 2026 Save WhatsApp Report

1 answer

Answer: (D) \(3x^2 + 15x + 3 = 0\)

Sum of roots \(= -\frac{b}{a}\). For (D): \(-\frac{15}{3} = -5\). (A) and (B) give 5, (C) gives −3.

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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