SOLUTION: Simplify the rational expression.
(a^2 + 13a + 40) / (a^2 - 4a - 45)
Algebra.Com
Question 419567: Simplify the rational expression.
(a^2 + 13a + 40) / (a^2 - 4a - 45)
Answer by algebrahouse.com(1659) (Show Source): You can put this solution on YOUR website!
"Simplify the rational expression.
(a^2 + 13a + 40) / (a^2 - 4a - 45)"
a^2 + 13a + 40
--------------
a^2 - 4a - 45
(a + 8)(a + 5)
-------------- {factored top and bottom into two binomials}
(a - 9)(a + 5)
a + 8
------ {cancelled a + 5 on top and bottom}
a - 9
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