1.
Simplify
A.
B.
C.
D.
Hint
2.
Find
A.
B.
C.
x
2
- 5
x
+ 6
D.
x
- 2
Hint
3.
Simplify the expression
.
A.
B.
C.
D.
Hint
4.
Simplify
.
A.
B.
C.
D.
Hint
5.
Assuming that
, determine whether
is
sometimes
,
always
, or
never
true.
A.
sometimes
B.
never
C.
always
D.
cannot be determined from given information
Hint
, determine whether 
is sometimes, always, or never true.