SOLUTION: Factor Completely. 5a^2 -125 I foiled this problem and came up with the same expression. I need some help. Thanks

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor Completely. 5a^2 -125 I foiled this problem and came up with the same expression. I need some help. Thanks      Log On


   

Question 70969This question is from textbook Beginning Algebra
: Factor Completely. 5a^2 -125
I foiled this problem and came up with the same expression. I need some help. Thanks This question is from textbook Beginning Algebra

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
5a%5E2-125 First factor a 5 from both terms.
5%28a%5E2-25%29 Now factor the parentheses.
5%28a-5%29%28a%2B5%29