Question

Choose the correct answer for the following question.

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

Options

• 3x² - 15x + 3 = 0

• x² - 5x + 3 = 0

• x² + 3x - 5 = 0

• 3x² + 15x + 3 = 0

Answer 1

 For the equation 3x² + 15x + 3 = 0

\[\text{ Sum of roots } = \frac{- b}{a} = \frac{- 15}{3} = - 5\]

Hence, the correct answer is 3x² + 15x + 3 = 0.