1.
Determine which expression is not a polynomial.
A.
x
2
-
y
2
+
z
2
B.
C.
D.
Hint
2.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
6
r
- 4
s
B.
8
r
C.
6
r
- 3
s
D.
3
r
- 2
s
Hint
3.
Simplify 6
g
(-3
h
- 4).
A.
-18
g
h
- 4
B.
6
g
h
- 4
C.
-18
g
- 4
D.
-18
g
h
- 24
g
Hint
4.
Simplify (7
x
2
+ 2
x
– 3) – (2
x
2
– 11
x
+ 4)
A.
5
x
2
+ 13
x
– 7
B.
C.
D.
Hint
5.
Determine whether the expression
x
+
y
+
z
is a monomial, binomial, or trinomial.
A.
Cannot be determined from given information.
B.
binomial
C.
monomial
D.
trinomial
Hint