SOLUTION: I need help solving this problem using foil. Thank you. (a - 2/5)(a + 5/2)

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Question 667930: I need help solving this problem using foil. Thank you.
(a - 2/5)(a + 5/2)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

(a - 2/5)(a + 5/2) = x^2 + (21/10)a - 1

F	First terms  a^2

O	Outside terms  5/2a

I	Inside terms  -2/5a   +%285%2F2%29a+-%282%2F5%29a+=%2825%2F10%29a+-%284%2F10%29a=+%2821%2F10%29a++

L	Last terms   -10/10