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For which value of k does the equation x^2 + kx + 16 = 0 have equal roots? (2019)

Practice Questions

1 question
Q1
For which value of k does the equation x^2 + kx + 16 = 0 have equal roots? (2019)
  1. -8
  2. -4
  3. 4
  4. 8

Questions & Step-by-step Solutions

1 item
Q
Q: For which value of k does the equation x^2 + kx + 16 = 0 have equal roots? (2019)
Solution: For equal roots, the discriminant must be zero: k^2 - 4*1*16 = 0. Solving gives k = -8.
Steps: 0

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