1.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
6
r
- 4
s
B.
3
r
- 2
s
C.
6
r
- 3
s
D.
8
r
Hint
2.
Find the polynomial that represents the measure of the perimeter of the triangle.
A.
7
xy
2
+ 10
x
– 2
y
B.
7
x
3
y
6
+ 10
x
2
– 2
y
C.
5
xy
2
+ 10
x
D.
15
xy
2
Hint
3.
Simplify (7
x
2
+ 2
x
– 3) – (2
x
2
– 11
x
+ 4)
A.
5
x
2
+ 13
x
– 7
B.
C.
D.
Hint
4.
Determine whether the expression 5
x
3
y
3
–
x
2
y
2
is a polynomial.
A.
Cannot be determined from given information.
B.
No, because there are two variables.
C.
No, because there are two terms.
D.
Yes.
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