9.3 Practice

Match the following numbers to their square roots.

• 6

• 25

• 9

• 81

• 8

• 49

• 7

• 64

• 5

• 36

x² = 16

• ± 4
• ± 8
• 4
• 8

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

Determine the type of Solution
(x+3)²-5 = 9

• Two Real Solutions

• Two Imaginary Solutions

• One Real Solution

• No Real Solutions

3 (x - 2)² + 4 = 79

• x = 3, x = 7

• x = -3, x = 7

3( x+3 )² = 27

• x = 3, x = -3

• x = 0

• x = 6, x = 0

• x = 0, x = -6

(x - 2) ² = 9

• ± 3
• 5  or  -1
• -5  or  1
• ± 9

• x = –8

  x = 12

• x = –12

  x = 5

• x = 5

  x = –3

• x = 2

  x = –2

x² = -25

• x = 5, -5

• No Real Solution

• x = 12.5, -12.5

• x = 25, -25

• x = –2

  x = 3

• x = 10

  x = 11

• x = –5

  x = 6

• x = –3.5

  x = 5.5