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# 2.2-2.5 review (2)

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### Transcript

• 1. &#xF09E; x = -1, 0 , 1&#xF09E; x = -2, 0, 2&#xF09E; x = -2, -1, 1, 2
• 2. x = -2, 0, 2 x = -2, -1, 1, 2 x = -1, 0 , 1
• 3. &#xF09E; a &lt; 0; x = 2, -1
• 4. &#xF09E; -(x &#x2013; 2) (x + 1)
• 5. &#xF09E; a &lt; 0; x = 2, -1, 3 5&#xF09E; a &gt; 0; x = 0, 6 (double root), 2i
• 6. 4 3 2x 7 x 8x 8x 8
• 7. 5 4 3 2x 12x 40x 48x 144x
• 8. &#xF09E; x = 2 (double root) 5&#xF09E; x = 0 (triple root), 2, -3&#xF09E; x= 6 3
• 9. &#xF09E; . f ( x) x 4 4x 3 x 2 20 x 20
• 10. &#xF09E; . ( x) f x 5 x 4 6x 3
• 11. &#xF09E; . ( x) f x 2 12 x 33
• 12. &#xF09E;(7 + 5i) + (-4 + 2i)
• 13. &#xF09E;3+ 7i
• 14. &#xF09E;(2 - 6i) &#x2013; (-3 + i)
• 15. &#xF09E;5 &#x2013; 7i
• 16. &#xF09E;(1 &#x2013; 5i)(3 &#x2013; 2i)
• 17. &#xF09E;-7 &#x2013; 17i
• 18. _&#xF09E;6 i 4 i
• 19. 6 i 4 i4 i 4 i 224 6i 4i i 216 4i 4i i24 6i 4i 116 4i 4i 123 10i 17
• 20. 4 2&#xF09E; . f ( x) x 4x 5
• 21. &#xF09E; x = &#xB1; i 5, x 1
• 22. &#xF09E; . f ( x) 4x 3 4x 2 15 x
• 23. &#xF09E; x = 0, x = -3/2, x = 5/2
• 24. 3 2&#xF09E; . f ( x) 2x 13x 13x 3
• 25. &#xF09E; P/q : &#xB1;1, &#xB1;3, &#xB1;1/2, &#xB1;3/2 1 7 61&#xF09E;x= , x 2 2
• 26. &#xF09E; . f ( x) x 4 6x 3 x 2 54 x 72
• 27. &#xF09E; p/q = &#xB1;1, &#xB1;2, &#xB1;3, &#xB1;4, &#xB1;6, &#xB1;8, &#xB1;9, &#xB1;12, &#xB1;18, &#xB1;24, &#xB1;36 , &#xB1;72&#xF09E; x = -2, x = -4, x = -3, x = 3
• 28. 3 2&#xF09E; . f ( x) 2x x 25 x 12
• 29. &#xF09E; p/q = &#xB1;1, &#xB1;2, &#xB1;3, &#xB1;4, &#xB1;6, &#xB1;12, &#xB1;1/2, &#xB1;3/2&#xF09E; x = 3, x = &#xBD;, x = -4
• 30. 3 2&#xF09E; . f ( x) 2x 5x 9x 8
• 31. &#xF09E; x = -1.661, x = .695, x = 3.465
• 32. .&#xF09E; f ( x) x5 3x 4 13x3 39 x 2 36 x 108, ( x 3)
• 33. ( x 3)( x 3)( x 2)( x 2)( x 3)