Solve Using Square Roots

• {6.78,-6.78}

• {8,-8}

• {7,-7}

• No Solution

x² = 16

• ± 4

• ± 8

• 4

• 8

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

• x=10

• x=-10

• x= -10, 10

• x= -50,50

• x = 0

• no solutions

• x = 4 or x = -4

• x = 4

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

Solve by taking square roots:
(2x+6)² + 8 = 24

• x = - 1 , x = - 5 

• x = - 1 , x = 5 

• x = 1 , x = 5

• x = 1 , x = - 5