square root formula - ddjudge.com

Square Root Formula Solve the following for x.

1. 2.

3. 4.

5. 6.

7. 8.

9. 10.

11. 12.

13. 14.

15. 16.

17. 18.

19. 20.

21. 22.

23. 24.

25. 26.

27. 28.

29. 30.

31. 32.

33. 34.

35. 36.

37. 38.

39. 40.

x2 = 9 x2 = 16

x2 = −16 x2 = −9

x2 = 25 x2 = 36

x2 = −36 x2 = −25

x2 − 4 = 0 x2 − 64 = 0

x2 −1= 0 x2 − 49 = 0

x2 + 4 = 0 x2 + 25 = 0

x2 +1= 0 x2 +100 = 0

x2 −100 = 0 x2 −16 = 0

x2 = 8 x2 = 18

x2 = 72 x2 = 40

x2 = 50 x2 = 75

x2 = −18 x2 = −20

x2 = −80 x2 = −75

x2 − 24 = 0 x2 − 48 = 0

x2 −18 = 0 x2 − 8 = 0

x2 + 32 = 0 x2 + 60 = 0

x2 +125 = 0 x2 + 90 = 0

x2 = 5 x2 = 7

x2 = 2 x2 = 3

41. 42.

43. 44.

45. 46.

47. 48.

49. 50.

51. 52.

53. 54.

55. 56.

57. 58.

59. 60.

61. 62.

63. 64.

65. 66.

67. 68.

69. 70.

71. 72.

73. 74.

75. 76.

77. 78.

x2 = 12 x2 = 28

x2 = −3 x2 = −6

x2 = −10 x2 = −15

x2 +11= 0 x2 +13= 0

x2 +15 = 0 x2 + 30 = 0

x2 + 2 = 0 x2 + 22 = 0

4x2 − 20 = 0 5x2 − 30 = 0

5x2 − 30 = 10 5x2 − 30 = 20

2x2 + 30 = 20 4x2 + 30 = 10

6x2 − 30 = −12 6x2 − 4 = −22

x − 2( )2 = 4 x −1( )2 = 9

x − 5( )2 = 16 x −1( )2 = 25

x +1( )2 = 25 x + 5( )2 = 49

x + 3( )2 = 81 x + 4( )2 = 49

x + 2( )2 = −4 x + 3( )2 = −9

x +1( )2 = −25 x + 2( )2 = −36

2 x + 5( )2 = 36 3 x +1( )2 = 24

3 x −1( )2 = 24 4 x −1( )2 = 24

4 x −1( )2 = −16 5 x − 2( )2 = −125

79. 80.

81. 82.

3 x − 2( )2 = −27 4 x − 2( )2 = −16

2 x +1( )2 = −40 4 x +1( )2 = −40