GED Practice

GED Math Review: Factoring x² + bx + c


Questions:
Factor each expression.


  1. x + 9x + 20
  2. x - 5x + 6
  3. x + 5x - 6
  4. x - 3x - 28
  5. x + 8x + 12
  6. x + 2x - 3
  7. x - 7x + 12
  8. x + 7x - 8
  9. x + 3x - 10
  10. x + 10x + 21

    Tip:

    Note that for the problems in this lesson, the coefficient for the squared term is 1. The factoring process changes slightly when that coefficient is a different number.
answer:

  1. (x + 4)(x + 5)
  2. (x - 2)(x - 3)
  3. (x + 6)(x - 1)
  4. (x + 4)(x - 7)
  5. (x + 2)(x + 6)
  6. (x + 3)(x - 1)
  7. (x - 3)(x - 4)
  8. (x + 8)(x - 1)
  9. (x -2)(x + 5)
  10. (x + 3)(x + 7)






Reference:


Complete Test Preparation for the GED Test 2014 by Steck-Vaughn