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For the quadratic equation x^2 + 2x + k = 0 to have no real roots, k must be:

Practice Questions

1 question
Q1
For the quadratic equation x^2 + 2x + k = 0 to have no real roots, k must be:
  1. < 0
  2. ≥ 0
  3. ≤ 0
  4. > 0

Questions & Step-by-step Solutions

1 item
Q
Q: For the quadratic equation x^2 + 2x + k = 0 to have no real roots, k must be:
Solution: The discriminant must be negative: 2^2 - 4*1*k < 0 => 4 < 4k => k > 1.
Steps: 0

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