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If the roots of the equation x² + 2x + k = 0 are 1 and -3, what is the value of k? (2020)

Practice Questions

1 question
Q1
If the roots of the equation x² + 2x + k = 0 are 1 and -3, what is the value of k? (2020)
  1. -3
  2. 2
  3. 3
  4. 4

Questions & Step-by-step Solutions

1 item
Q
Q: If the roots of the equation x² + 2x + k = 0 are 1 and -3, what is the value of k? (2020)
Solution: Using the sum and product of roots: 1 + (-3) = -2 and 1 * (-3) = -3, thus k = 3.
Steps: 0

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