2. Quadratic Equations : Question Bank : Question 3B

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Answer: k = 6

Answer: Sagar: ₹ 100/-, Mukund: ₹ 150/-

( This problem is same as Practice Set 2 : Problem 11 )

Answer: x = − 2 OR x = 1

Answer: x =

\frac{2 + \sqrt{14}}{5}

OR x =

\frac{2 - \sqrt{14}}{5}

Answer: x =

\frac{- 1 + \sqrt{73}}{6}

OR x =

\frac{- 1 - \sqrt{73}}{6}

Answer: x² − 4x − 3 = 0

1. Find the value of k, if the roots of the quadratic equation kx(x − 2) + 6 = 0 are real and equal.