GED Practice

GED Math Review: Factoring ax² + bx + c


Questions:

Factor each quadratic expression into a product of linear factors.


  1. 2x2 + 15x + 7
  2. 7z2 - 30z + 27
  3. 8x2 - 10x - 3
  4. 30d2 + 7d - 15
  5. 10g2 + 23g + 12
Answer:

  1. (2x + 1)(x + 7) = 0
  2. (z - 3)(7z - 9) = 0
  3. (4x + 1)(2x - 3) = 0
  4. (6d + 5)(5d - 3) = 0
  5. (2g + 3)(5g + 4) = 0









Reference:


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