2. 1S Algebra Revision!

9. $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500

10. 2a + 6f – 7a - f

11. -5a + 5f

12. 5t 2 + 7t – 5t + 4t 2

13. 9t 2 + 2t

14. 6ac x 5a 4

15. 30a 5 c

16. (2a 5 ) 3

17. 8a 15

18. 30x 4 y 2 / 5x 3 y

19. 6xy

20. -3 (x + 7)

21. -3x -21

22. 2ab(4a – 2b)

23. 8a 2 b – 4ab 2

24. (a + 5)(a – 4)

25. a 2 + a - 20

26. (4a – 3)(5 + a)

27. 4a 2 + 17a - 15

28. (6 – 2a)(3 + b)

29. 18 + 6b – 6a – 2ab

30. 5a + 10

31. 5(a + 2)

32. 3a + 6f – 3g

33. 3(a + 2f – g)

34. 15a 2 b – 3ab 2

35. 3ab (5a – b)

36. a 2 + 16a + 64

37. (a + 8) 2

38. c 2 - 49

39. (c + 7)(c – 7)

40. c / 4 = 3

41. c = 12

42. 2a – 4 = -14

43. a = -5

44. -3m = -27

45. m = 9

46. 4x + 2 = x - 7

47. x = -3

48. 15 – 2x = 17 – 3x

49. x = 2

50. a = 3, 2a + 1 = ?

51. 7

52. x = 4, x 2 – 3x = ?

53. 4

54. m = 2, p = 4 2m – 3p = ?

55. -8

56. r = -3 and t = -1 3r / (t + 5) = ?

57. -9/4

61. 4b + 6 = 14

62. b = 2

63. (x + 4)(x – 3) = 0

64. x = -4 and x = 3

65. (2a + 6)(a – 2) = 0

66. a = -3 and a = 2

67. (4a + 2) / 9 = 2

68. a = 4

69. c 2 + 5c + 6 = 0

70. ie (c + 3)(c + 2) = 0, so c = -3 and -2

79. $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000