Solving Radical Equations

 $\sqrt{x}=10$  

• 100

• 20

• 5

• 50

 $\sqrt{x-4}=3$  

• 5

• 10

• 13

• 2

 $\sqrt{x}-5=-2$  

• 9

• 6

• 4

• 7

 $6\sqrt{x}=54$  

• 36

• 72

• 54

• 81

 $8+\sqrt{x+5}=12$  

• 15

• 11

• 13

• 18

What is an extraneous solution?

• A solution that does not exist

• An extra solution you must find

• All real solutions