CHAPTER 7 SECTION 2
Algebra 2 Notes ~ April 13, 2009
Chapter 6 Notebook Quiz
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1. When you divide two polynomials and end up with a
remainder of 0, what can you say about both the
Quotient and the Divisor? (6.3; April 3)
2. When you’re solving a polynomial, what are you
solving for? (6.4; April 6)
3. What is the formula for the sum of cubes? (6.4; April 6)
4. What does the rational root theorem say? (6.5; April 7)
Notebook Quiz Answers
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1. They are both factors of the dividend.
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2. The x-intercepts
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3.
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4. All possible solutions are in the form p/q where p is
all the factors of the constant and q is all the factors of
the leading coefficient.
Homework #47 Answers
1) 15, -15
2) 0.07, -0.07
3) none
5) -4
6) 0.5
9) 2, -2
10) none
13) 6
14) -6
15) no real root
16) 0.6
17) -4
18) -4
19) -3
20) no real root
21) 6
22)
23)
24)
25) -4a
26) 0.6
27) -4
28) -4
29) 1.34 in
30) 1.68 ft
38) a. 35 ft b. 20 ft
39) 0.5
40) 1/3
41) 0.2
42) 1/4
Making Your Tables:
2
3
4
5
6
7
8
9
10
Multiplying Radicals
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RULE:
If
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and
EXAMPLES:
are real numbers, then
One of These Things is Not Like the
Other…
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Which of these products is not possible?
Simplifying Radical Expressions
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Simplify – EXAMPLES:
Multiplying Radical Expressions
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Multiply and Simplify – EXAMPLES:
Dividing Radical Expressions
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RULE:
If
and
then,
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EXAMPLES:
are real numbers and
Rationalizing the Denominator
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Rewrite a fraction so there are no radicals in the
denominator!!!
EXAMPLES:
Homework #48
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Page 377 #1, 2, 5, 6, 9, 10, 13,
14, 17, 18, 23, 26, 27, 29, 31,
32, 35