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2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
2.2-2.5 review (2)
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2.2-2.5 review (2)

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Transcript

  • 1.  x = -1, 0 , 1 x = -2, 0, 2 x = -2, -1, 1, 2
  • 2. x = -2, 0, 2 x = -2, -1, 1, 2 x = -1, 0 , 1
  • 3.  a < 0; x = 2, -1
  • 4.  -(x – 2) (x + 1)
  • 5.  a < 0; x = 2, -1, 3 5 a > 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.  x = 2 (double root) 5 x = 0 (triple root), 2, -3 x= 6 3
  • 9.  . f ( x) x 4 4x 3 x 2 20 x 20
  • 10.  . ( x) f x 5 x 4 6x 3
  • 11.  . ( x) f x 2 12 x 33
  • 12. (7 + 5i) + (-4 + 2i)
  • 13. 3+ 7i
  • 14. (2 - 6i) – (-3 + i)
  • 15. 5 – 7i
  • 16. (1 – 5i)(3 – 2i)
  • 17. -7 – 17i
  • 18. _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 . f ( x) x 4x 5
  • 21.  x = ± i 5, x 1
  • 22.  . f ( x) 4x 3 4x 2 15 x
  • 23.  x = 0, x = -3/2, x = 5/2
  • 24. 3 2 . f ( x) 2x 13x 13x 3
  • 25.  P/q : ±1, ±3, ±1/2, ±3/2 1 7 61x= , x 2 2
  • 26.  . f ( x) x 4 6x 3 x 2 54 x 72
  • 27.  p/q = ±1, ±2, ±3, ±4, ±6, ±8, ±9, ±12, ±18, ±24, ±36 , ±72 x = -2, x = -4, x = -3, x = 3
  • 28. 3 2 . f ( x) 2x x 25 x 12
  • 29.  p/q = ±1, ±2, ±3, ±4, ±6, ±12, ±1/2, ±3/2 x = 3, x = ½, x = -4
  • 30. 3 2 . f ( x) 2x 5x 9x 8
  • 31.  x = -1.661, x = .695, x = 3.465
  • 32. . 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)

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