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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708 <strong>Chapter</strong> 7 <strong>Rational</strong> <strong>Functions</strong><br />
7.6 Answers<br />
23. Provided x ≠ 5, −4, or −40,<br />
1. 1<br />
x 2<br />
(7x + 17)(x − 3)<br />
5x − 4 . 3. 1<br />
17x − 4<br />
x + 40 .<br />
5. 19/23<br />
25. Provided x ≠ −8, 2, −2, or −14/3,<br />
7. Provided x ≠ 0, −6/5, or 6/5,<br />
(11x + 28)(x + 2)<br />
x 2<br />
5x − 6 .<br />
(3x + 14)(x + 8) .<br />
27. Provided x ≠ −7, −4, or −11/5,<br />
9. Provided x ≠ 2, 7, −8, <strong>of</strong> −43/11,<br />
2x − 7<br />
(2x − 39)(x + 8)<br />
(11x + 43)(x − 2) .<br />
5x + 11 .<br />
29. Provided x ≠ 0 or 5/8,<br />
11. Provided x ≠ 0, −7/3, or 7/3,<br />
8x + 5<br />
x 3<br />
3x − 7 .<br />
x 2 .<br />
31. Provided x ≠ 6, −9, or 21,<br />
13. Provided x ≠ −4, −9, 8, or 54/11,<br />
2<br />
(16x + 109)(x − 8)<br />
(11x − 54)(x + 4) .<br />
3 .<br />
33. Provided x ≠ 0 or 8/3,<br />
15. Provided x ≠ 7, 4, −2, or −8,<br />
3x + 8<br />
x + 2<br />
5(x − 7) .<br />
x 3 .<br />
35. Provided x ≠ 4, 7, −2, or 1,<br />
17. Provided x ≠ 3, 8, or 93/16,<br />
−2(x + 2)<br />
11x − 63<br />
16x − 93 .<br />
3(x − 4) .<br />
37. Provided x ≠ 1, −9, 9, −1, −5,<br />
19. Provided x ≠ 2, 7, or 39/7,<br />
(x − 5)(x + 1)<br />
11x − 42<br />
7x − 39 .<br />
3(x + 5)(x − 1)<br />
21. Provided x ≠ 0, −4/5, or 4/5,<br />
39. Provided x ≠ −1, −7, −6, 3, −21/13,<br />
Version: Fall 2007