# Memorize

The flashcards below were created by user vlopez1782 on FreezingBlue Flashcards.

1. |x +b| = c
• -b is the centerpoint
• x is exactly c units away from b
2. |x + b| < c
• -b is the centerpoint
• x is less than c units away from the centerpoint, -b
3. with fractions rx blank as x blank
rx decreases as x increases
4. sqrt(x) =
|x|
5. (a2 - b2 ) =
(a + b)(a - b)
6. (x + y)2 =
x2 + 2xy + y2
7. (x - y)2 =
x2 - 2xy + y2
8. (x + y)(x - y)=
x2 - y2
9. (n2 - 1)
• = (n2 - 1)
• = (n2 - 12 )
• = (n + 1)(n - 1)
10. n(n2 - 1)
• = n(n2 -1)
• = n(n2 -12 )
• = n(n+1)(n-1)
• = (n-1)n(n+1)
• 3 consecutive integers
11. Primes 11-20
31, 37, 41, 43, 47, 53, 59, 61, 67, 71
12. First 10 primes
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
13. 12
1
14. 1.42
~2
15. 1.72
~3
16. 22
4
17. 2.252
~5
18. 32
9
19. 42
16
20. 52
25
21. 62
36
22. 72
49
23. 82
64
24. 92
81
25. 102
100
26. 112
121
27. 122
144
28. 132
169
29. 142
196
30. 152
225
31. 162
256
32. 202
400
33. 252
625
34. 302
900
35. sqrt(900)
30
36. sqrt(625)
25
37. sqrt(400)
20
38. sqrt(256)
16
39. sqrt(225)
15
40. sqrt(196)
14
41. sqrt(169)
13
42. sqrt(144)
12
43. sqrt(121)
11
44. sqrt(100)
10
45. sqrt(81)
9
46. sqrt(64)
8
47. sqrt(49)
7
48. sqrt(36)
6
49. sqrt(25)
5
50. sqrt(16)
4
51. sqrt(9)
3
52. sqrt(4)
2
53. sqrt(5)
~2.25
54. sqrt(3)
~1.7
55. sqrt(2)
~1.4
56. sqrt(1)
1
57. 13
1
58. 23
8
59. 33
27
60. 43
64
61. 53
125
62. cuberoot(125)
5
63. cuberoot(64)
4
64. cuberoot(27)
3
65. cuberoot(8)
2
66. cuberoot(1)
1
 Author: vlopez1782 ID: 12338 Card Set: Memorize Updated: 2010-04-06 14:56:11 Tags: GMAT Folders: Description: Squares, square roots, cubes, cube roots Show Answers: