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What is the value of k if the equation x² - 4x + k = 0 has no real roots? (2021)

Practice Questions

1 question
Q1
What is the value of k if the equation x² - 4x + k = 0 has no real roots? (2021)
  1. 5
  2. 6
  3. 7
  4. 8

Questions & Step-by-step Solutions

1 item
Q
Q: What is the value of k if the equation x² - 4x + k = 0 has no real roots? (2021)
Solution: For no real roots, the discriminant must be less than zero: (-4)² - 4*1*k < 0, hence k > 4.
Steps: 0

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