Let a be a real number and n a positive integer. Show show that x-a is a factor of xn - an

How can the passage best be revised to eliminate logical fallacies and improve clarity

When should you use encyclopedias such as wikipedia? a. never, it is not appropriate to use this source in college b. it can you get an overall understanding of the subject matter but is not considered a college-level source c. as long as wikipedia isn't the only source, it is always appropriate to use this source

Which statement is the most accurate summary of this excerpt from leo tolstoy’s the death of ivan ilyich?