SOLUTION: Need help solving this: (ab+1)(a-2)

SOLUTION: Need help solving this: (ab+1)(a-2)

Algebra.Com

Question 51093: Need help solving this:
(ab+1)(a-2)
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
(ab+1)(a-2) [Use the FOIL method]
(ab)(a)+ (ab)(-2) + (1)(a) + (1)(-2) [Multiply]
a^2b + (-2ab) + a + (-2) [Simplify]
a^2b-2ab+a-2
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