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The equation x^2 - 4x + k = 0 has no real roots if k is:

Practice Questions

1 question
Q1
The equation x^2 - 4x + k = 0 has no real roots if k is:
  1. < 4
  2. ≥ 4
  3. ≤ 4
  4. > 4

Questions & Step-by-step Solutions

1 item
Q
Q: The equation x^2 - 4x + k = 0 has no real roots if k is:
Solution: The discriminant must be less than zero: (-4)^2 - 4*1*k < 0 leads to k > 4.
Steps: 0

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