22.1 Solving Equations with Square Roots

Solve by square roots

x² - 64 = 0

• 64

• 8

• 8 or -8

• 1 or -64

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

x² -4 = 77

• 9

• -9

• No Real Solutions

• 9, -9

-7x² +21 = 14

• 1

• -1

• NO Real Solutions

• 1, -1

What are the zeros?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

Use the graph to determine the solutions.

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3

• A

• B

• C

• D

• A

• B

• C

• D