The expression is
.
Multiply by
, the reciprocal of
.


Factors of the denomianor
.
To find two numbers, m and n, with the product of 1 · 6 or 6 and the sum of 5.
\The correct factors are 3 and 2.
\
(Write the factors form)
(Substitute m = 3, and n = 2)
(Group terms with common factors)pro
(Factor the GCF from each grouping terms)
(Take out common factor (x + 3))
Factors of the denominator
.
To find two numbers, m and n, with the product of 1·18 or 18 and the sum of 11.
\The correct factors are 9 and 2.
\
(Write the factors form)
(Substitute m = 9, and n = 2)
(Group terms with common factors)
(Factor the GCF from each grouping terms)
(Take out common factor (x + 9))
Substitute factors of 
and 
.

(Cancel common terms)
The simplified expression is
.