SOLUTION: a2 + 2ab – 80b2 A. (a – 10)(a + 8b) B. (a – 10b)(a – 8b) C. (a + 10b)(a – 8b) D. (a + 10b)(a + 8b) Thank you

Algebra ->  Expressions-with-variables -> SOLUTION: a2 + 2ab – 80b2 A. (a – 10)(a + 8b) B. (a – 10b)(a – 8b) C. (a + 10b)(a – 8b) D. (a + 10b)(a + 8b) Thank you      Log On


   

Question 619749: a2 + 2ab – 80b2
A.
(a – 10)(a + 8b)
B.
(a – 10b)(a – 8b)
C.
(a + 10b)(a – 8b)
D.
(a + 10b)(a + 8b)


Thank you
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, Recommed eliminating spacing when listing Inquiry

a%5E2+%2B+2ab-80b%5E2

factoring

 (a+10b)(a- 8b)   ||Recommed Checking the factoring using FOIL

F	First terms

O	Outside terms

I	Inside terms

L	Last terms