1.
Find the sum (–5
x
+ 6) + (–2
x
– 7).
A.
–7
x
+ 1
B.
–7
x
+ 13
C.
7
x
+ 13
D.
–7
x
– 1
Hint
2.
Which expression is the additive inverse of –
x
2
+ 3
x
– 8?
A.
x
2
- 3
x
- 8
B.
-
x
2
- 3
x
- 8
C.
x
2
+ 3
x
- 8
D.
x
2
- 3
x
+ 8
Hint
3.
Find the difference.
A.
7
x
3
- 11
x
2
- 5
x
- 1
B.
7
x
3
- 11
x
2
+ 5
x
+ 17
C.
7
x
3
- 11
x
2
- 5
x
+ 17
D.
7
x
3
- 11
x
2
+ 5
x
- 1
Hint
4.
Rewriting the expression (
y
+ 5) – (4
y
+ 1) as (1 – 4)
y
+ (5 – 1) shows of grouping the like terms and the use of the _______.
A.
Distributive Property
B.
Addition Property of Equality
C.
Commutative Property of Multiplication
D.
Associative Property of Addition
Hint
5.
Find the measure of the third side of the triangle if the measure of the perimeter is 11
j
+ 2
k
meters.
A.
3
j
+
k
meters
B.
4
j
– 2
k
meters
C.
19
j
+ 3
k
meters
D.
8
j
– 3
k
meters
Hint