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Find the value of k for which the equation x² + kx + 16 = 0 has equal roots. (2022)

Practice Questions

1 question
Q1
Find the value of k for which the equation x² + kx + 16 = 0 has equal roots. (2022)
  1. -8
  2. -4
  3. 4
  4. 8

Questions & Step-by-step Solutions

1 item
Q
Q: Find the value of k for which the equation x² + kx + 16 = 0 has equal roots. (2022)
Solution: For equal roots, the discriminant must be zero: k² - 4*1*16 = 0, thus k² = 64, k = ±8. The value of k can be -8.
Steps: 0

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