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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Section 7.5 Sums and Differences <strong>of</strong> <strong>Rational</strong> <strong>Functions</strong> 693<br />
7.5 Answers<br />
1. 7(x − 1), provided x ≠ 6.<br />
3. −9(x − 6), provided x ≠ −3.<br />
5. 4(x + 4), provided x ≠ 4.<br />
7. 9(x − 7), provided x ≠ 1.<br />
9. 4(x − 8), provided x ≠ 7.<br />
11. 3(x − 8), provided x ≠ 2.<br />
13. 9(x − 7), provided x ≠ 2.<br />
15. 3(x + 3), provided x ≠ 3.<br />
17. Provided x ≠ 5, 1, 9,<br />
3(x + 1)<br />
(x − 1)(x − 9)<br />
19. Provided x ≠ −6, 2, −14,<br />
9(x + 2)<br />
(x − 2)(x + 14)<br />
21. Provided x ≠ 7, 14, 0,<br />
5(x + 14)<br />
x(x − 14)<br />
23. Provided x ≠ 5, 3, 7,<br />
−7(x + 3)<br />
(x − 3)(x − 7)<br />
27. Provided x ≠ 7, 14, 0,<br />
6(x + 14)<br />
x(x − 14)<br />
29. Provided x ≠ 2, 4, 0,<br />
−9(x + 4)<br />
x(x − 4)<br />
31. Provided x ≠ 5, 0, −10,<br />
−8<br />
x + 10<br />
33. Provided x ≠ −6, 5, −17,<br />
−5(x + 5)<br />
(x − 5)(x + 17)<br />
35. Provided x ≠ −2, −4, 0,<br />
8(x − 4)<br />
x(x + 4)<br />
37. Provided x ≠ −4, −8, 0,<br />
11(x − 8)<br />
x(x + 8)<br />
39. Provided x ≠ −1, 0, −2,<br />
−4<br />
x + 2<br />
25. Provided x ≠ 4, 8, 0,<br />
−9(x + 8)<br />
x(x − 8)<br />
Version: Fall 2007
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