Which of the following expressions represents the sum of the roots of the quadra

Practice Questions

Q1
Which of the following expressions represents the sum of the roots of the quadratic equation 5x^2 + 3x - 2 = 0?
  1. -3/5
  2. 3/5
  3. 2/5
  4. -2/5

Questions & Step-by-Step Solutions

Which of the following expressions represents the sum of the roots of the quadratic equation 5x^2 + 3x - 2 = 0?
  • Step 1: Identify the coefficients of the quadratic equation. The equation is 5x^2 + 3x - 2 = 0.
  • Step 2: Recognize the standard form of a quadratic equation, which is ax^2 + bx + c = 0. Here, a = 5, b = 3, and c = -2.
  • Step 3: Use the formula for the sum of the roots of a quadratic equation, which is -b/a.
  • Step 4: Substitute the values of b and a into the formula. Here, b = 3 and a = 5.
  • Step 5: Calculate -b/a. This means you calculate -3/5.
  • Step 6: Conclude that the sum of the roots of the equation 5x^2 + 3x - 2 = 0 is -3/5.
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