The answer to “a - b is a factor of an - bn” is broken down into a number of easy to follow steps, and 10 words. This textbook survival guide was created for the textbook: College Algebra, edition: 9. Since the solution to 25 from 9.4 chapter was answered, more than 215 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 25 from chapter: 9.4 was answered by , our top Math solution expert on 03/19/18, 03:33PM. College Algebra was written by and is associated to the ISBN: 9780321716811. This full solution covers the following key subjects: . This expansive textbook survival guide covers 68 chapters, and 5502 solutions.