Classwork:
Given
and
, we have
(1) 
Using the composition found in (1), we have
(2) 
(3) 
Using the composition found in (3),
(4) 
Homework:
Now if
, we would have
(1) 
For (2), we could explicitly find
then evaluate it at <em>x</em> = -1 like we did in the classwork section, but we don't need to.
(2) 
(3) We can demonstrate that both methods work here:
• by using the result from (1),

• by evaluating the inner function at <em>x</em> = 2 first,
