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If the roots of the equation x² + 2x + k = 0 are real and distinct, what is the condition for k? (2020)

Practice Questions

1 question
Q1
If the roots of the equation x² + 2x + k = 0 are real and distinct, what is the condition for k? (2020)
  1. k > 1
  2. k < 1
  3. k > 4
  4. k < 4

Questions & Step-by-step Solutions

1 item
Q
Q: If the roots of the equation x² + 2x + k = 0 are real and distinct, what is the condition for k? (2020)
Solution: The discriminant must be greater than zero: 2² - 4*1*k > 0, which simplifies to k < 1.
Steps: 0

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