Luttrell 2012
132
Name: ______________________
Date: _____
1 Sets and Operations of Numbers
Directions: Use your algebra textbook to determine how to do the following questions. Read
carefully the text as well as the examples in the textbook. Try a few questions out of the
textbook for additional practice. Help is provided to clarify any concept.
1. Identify the different sets to which each number belongs.
Type
number
Integers
(Z)
Natural
(N)
Rational
(Q)
Imaginary
Whole
Complex
(C)
0
2.71828...
−
27
3
3.14
6
2. Simplify: (2x-3)(x+5)
3. Simplify: 4x - 2[3x - (x-2x)]
Explicitly solve two equivalent forms for absolute equations (inequalities). Then graph the
solution:
4. 4 - 3x > -5
5. | 3x + 2 | < 5
6. | x + 1 | < -3
7. 2 < | 2x + 3 | ≤ 5
8. | 5x - 3 | = 12
9. 8(x – 2) < 12
10. Expand: (x + y)
3
11. Solve (x + 4)(x - 5)(2x + 3) = 0.