(a)
\The polynomial function is
.
1. Draw the coordinate plane.
\2. Graph the function
.
Graph : \ \
\.gif\")
(b)
\Observe the graph of the function :
\The x - intercepts are
, and
.
(c)
\The polynomial function
.
Set
.
.
Solve the above equation by the synthetic division method.
\
\ \

\ \
The solutions are
. \ \
(d)
\The results of part (c) are
.
The x - intercepts are
, and
.
The results of part (c) match the x - intercept of the graph.
(a)
\Graph : \ \
\.gif\")
(b) The x - intercepts are
, and
.
(c) The solutions are 
(d) The results of part (c) match the x - intercept of the graph.