The sum of the roots of the quadratic equation 3x^2 - 12x + k = 0 is 4. What is the value of k?

Practice Questions

1 question
Q1
The sum of the roots of the quadratic equation 3x^2 - 12x + k = 0 is 4. What is the value of k?
  1. 0
  2. 4
  3. 8
  4. 12

Questions & Step-by-step Solutions

1 item
Q
Q: The sum of the roots of the quadratic equation 3x^2 - 12x + k = 0 is 4. What is the value of k?
Solution: Using Vieta's formulas, sum of roots = -b/a = 12/3 = 4, hence k = 8.
Steps: 0

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