WA 1, p. 3 Name: College ID: Thomas Edison State College College Algebra (MAT-121-GS) Section no.: Semester and year: Written Assignment 1 Answer all assigned exercises, and show all work. Let set A = 1251 6,,,3,0,,1,2,3,12 484 p ìü ---- íý îþ. List all the elements of A that belong to the set of rational numbers. (See section R.2, Example 1.) [6.25 points] Evaluate each expression. (See section R.2, Example 3.)[12.5 points] 93164 ×-¸ 4 ) 2 )( 3 ( ) 5 ( 6 - - - Evaluate each expression for p = –4, q = 8, and r = –10. (See section R2, Example 4.) [12.5 points] r q r 2 3 - 2 2 5 4 q p r q + - Use the distributive property to rewrite the sum as a product. (See section R.2, Example 6.) [6.25 points] x x 10 15 - Let x = –4 and y = 2. Evaluate each expression. (See section R.2, Example 9.) [12.5 points] x y + - 5 x y x - + 2 Simplify the expression. Assume variables represent nonzero real numbers. (See section R.3, Examples 1–3.) [6.25 points] ( ) 3 4 0 2 y x - Identify the expression as a polynomial or not a polynomial. If a polynomial, give the degree and identify it as a monomial, binomial, trinomial, or none of these.(See section R.3, Example 4.) [6.25 points] 5 4 y - 8. Find the sum or difference. (See section R.3, Example 5.) [6.25 points] ( ) ( ) ( ) 1 3 4 2 3 8 2 2 3 3 - + - + + - + - x x x x x x Find the product. (See section R.3, Examples 6–8.) [6.25 points] ( ) ( ) 5634 mm -+ Find the product. (See section R.3, Examples 8 and 9.) [6.25 points] ( ) [ ] 2 1 4 z y + - Perform the indicated operations. (See section R.3, Examples 5–9.) [12.5 points] ( ) 2 5 3 + p ( ) ) 3 2 ( 4 9 3 z z z z + + - - Perform the indicated operation. (See section R.3, Examples 10 and 11.) [6.25 points] rs rs s r s r 4 20 12 8 3 2 2 3 - + - - .

1. WA 1, p. 3
Name:
College ID:
Thomas Edison State College
College Algebra (MAT-121-GS)
Section no.:
Semester and year:
Written Assignment 1
Answer all assigned exercises, and show all work.
Let set A =
1251
6,,,3,0,,1,2,3,12
484
p
ìü
----
íý
îþ. List all the elements of A that belong to the set of rational
numbers. (See section R.2, Example 1.) [6.25 points]
Evaluate each expression. (See section R.2, Example 3.)[12.5
points]

2. 93164
×-¸
4
)
2
)(
3
(
)
5
(
6
-
-
-
Evaluate each expression for p = –4, q = 8, and r = –10. (See
section R2, Example 4.) [12.5 points]
r
q
r
2
3
-

3. 2
2
5
4
q
p
r
q
+
-
Use the distributive property to rewrite the sum as a product.
(See section R.2, Example 6.) [6.25 points]
x
x
10
15
-
Let x = –4 and y = 2. Evaluate each expression. (See section
R.2, Example 9.) [12.5 points]
x

4. y
+
-
5
x
y
x
-
+
2
Simplify the expression. Assume variables represent nonzero
real numbers. (See section R.3, Examples 1–3.) [6.25 points]
(
)
3
4
0
2
y
x
-
Identify the expression as a polynomial or not a polynomial. If a

5. polynomial, give the degree and identify it as a monomial,
binomial, trinomial, or none of these.(See section R.3, Example
4.) [6.25 points]
5
4
y
-
8. Find the sum or difference. (See section R.3, Example 5.)
[6.25 points]
(
)
(
)
(
)
1
3
4
2
3
8
2
2
3
3
-
+
-
+
+

6. -
+
-
x
x
x
x
x
x
Find the product. (See section R.3, Examples 6–8.) [6.25 points]
(
)
(
)
5634
mm
-+
Find the product. (See section R.3, Examples 8 and 9.) [6.25
points]
(
)
[
]
2
1

7. 4
z
y
+
-
Perform the indicated operations. (See section R.3, Examples 5–
9.) [12.5 points]
(
)
2
5
3
+
p
(
)
)
3
2
(
4
9
3
z
z
z

8. z
+
+
-
-
Perform the indicated operation. (See section R.3, Examples 10
and 11.) [6.25 points]
rs
rs
s
r
s
r
4
20
12
8
3
2
2
3
-
+
-
-