Chapter 7 Rational Functions - College of the Redwoods
Chapter 7 Rational Functions - College of the Redwoods
Chapter 7 Rational Functions - College of the Redwoods
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676 <strong>Chapter</strong> 7 <strong>Rational</strong> <strong>Functions</strong><br />
7.4 Answers<br />
1.<br />
3.<br />
5.<br />
7.<br />
9.<br />
3<br />
2<br />
81<br />
175<br />
7<br />
60<br />
105<br />
64<br />
343<br />
40<br />
11. Provided x ≠ −9, −7, −4,<br />
x(x + 6)<br />
(x + 9)(x + 4)<br />
13. Provided x ≠ 1, −1, −4, −5,<br />
(x + 2)(x − 9)<br />
−<br />
(x + 1)(x + 4)<br />
15. Provided x ≠ −8, 6, 1, 0,<br />
(x − 5)(x + 3)<br />
(x − 6)(x − 1)<br />
17. Provided x ≠ 1, 8, −3, −1,<br />
x(x − 3)<br />
−<br />
(x − 8)(x + 3)<br />
19. Provided x ≠ 7, −1, −6,<br />
(x + 2)(x + 8)<br />
−<br />
(x + 1)(x + 6)<br />
21. Provided x ≠ −3, −5, 9,<br />
(x − 3)(x − 6)<br />
−<br />
(x + 5)(x − 9)<br />
23. Provided x ≠ −8, −4, −7,<br />
(x + 5)(x − 6)<br />
(x + 8)(x + 7)<br />
25. Provided x ≠ 2, 6, 8,<br />
(x − 5)(x − 6)<br />
(x − 2)(x − 8)<br />
27. Provided x ≠ 2, 8, 2/3, −5,<br />
(x − 3)(x − 5)<br />
(3x − 2)(x − 8)<br />
29. Provided x ≠ −9, 7, 8, −2,<br />
(x − 2)(x − 3)<br />
(x − 7)(x − 8)<br />
31. Provided x ≠ 7, −9, −4,<br />
(x − 1)(x − 9)<br />
(x − 7)(x + 4)<br />
33. Provided x ≠ −3, −3/2, 5,<br />
(x + 6)(x − 3)<br />
−<br />
(2x + 3)(x + 3)<br />
35. Provided x ≠ −8, −2, 9, 3, 8,<br />
(x − 6)(x − 9)<br />
−<br />
(x + 2)(x − 3)<br />
37. Provided x ≠ 4, 3, 6, −5, −1,<br />
(x − 1)(x − 6)<br />
−<br />
(x − 3)(x + 5)<br />
39. Provided x ≠ −1, 2/5, −5, 3,<br />
(x − 5)(x − 3)<br />
(5x − 2)(x + 1)<br />
Version: Fall 2007