Quadratic Equations Quiz

Problems

  1. Solve for x: x² = 9.
  2. Solve: x² - 16 = 0.
  3. Solve: x² - 5x = 0.
  4. Factor to solve: x² - 7x + 12 = 0.
  5. Solve: 2x² - 8 = 0.
  6. Solve using factoring: x² + 6x + 5 = 0.
  7. Solve using quadratic formula: x² - 3x - 10 = 0.
  1. Solve: 2x² + x - 3 = 0.

2x² + x - 3 = 0.

  1. Solve: 3x² - 10x + 7 = 0.

3x² - 10x + 7 = 0.

  1. Solve: x² - 4x + 7 = 0.

x² - 4x + 7 = 0.

Answer Key

  1. x = 3
  2. x = 4
  3. x(x - 5) = 0 ) x = 0; 5
  4. (x - 3)(x - 4) = 0 ) x = 3; 4
  5. 2x² = 8 ) x² = 4 ) x = 2
  6. (x + 1)(x + 5) = 0 ) x = -1; -5
  7. x = 5; -2
  8. x = 1; -3/2
  9. x = 2; 3
  10. x = 2 ± i√3