Week 9 ALG CH 10-3 Solving a Radical Equation

Solve the equation:  $\sqrt{x}=9$  

• x = 9

• x = 81

• x = 18

• x = 27

Solve the equation:  $7=\sqrt{m}-5$  

• m = 2

• m =  4

• m = 144

• m = 24

Solve the equation:  $\sqrt{p}-7=-1$  

• p = 36

• p = 1

• p = 12

• p = 64

Why should you check every solution of a radical equation? Check all that apply.

• To check your work and make sure your calculations are correct

• You don't have to check your solutions for radical equations

• To make sure all the answers are perfect squares

• To make sure all the answers are nice numbers

• To check to make sure there are no extraneous solutions

Solve the equation:  $4-\sqrt{a}=2$  

• a = 5

• a = 2

• a = 16

• a = 4

Solve the equation:  $\sqrt{a-3}+5=9$  

• a = 4

• a = 19

• a = 16

• a = 10

Solve the equation:  $\sqrt{b+7}-5=-2$  

• b = 2

• b = 8

• b = 14

• a = 12

Solve the equation:  $2\sqrt{x+4}=16$  

• x = 30

• x = 8

• x = 60

• x = 16

Solve the equation:  $5\sqrt{y-2}=10$  

• y = 2

• y = 15

• y = 6

• y = 4

Solve the equation:  $2=\sqrt{4y-4}-4$  

• y = 12

• y = 10

• y = 8

• y = 4