SOLUTION: Can someone double check my answer? Factor completely. 5a2 – 125 A) (5a – 1)(a – 125) B) 5a(a – 25) C) 5(a + 5)(a – 5) D) 5(a – 5)2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can someone double check my answer? Factor completely. 5a2 – 125 A) (5a – 1)(a – 125) B) 5a(a – 25) C) 5(a + 5)(a – 5) D) 5(a – 5)2       Log On


   

Question 45246: Can someone double check my answer?
Factor completely. 5a2 – 125

A) (5a – 1)(a – 125) B) 5a(a – 25) C) 5(a + 5)(a – 5) D) 5(a – 5)2
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
First take out the common factor of 5
5a%5E2+-125
5%28a%5E2-25%29+

This leaves a difference of two squares, which factors:
5%28a-5%29%28a%2B5%29+

R^2 at SCC