Square and Cube Root Equations

Solve for x; identify extraneous solutions (if any).

• x = 17

• x = 5

• x = 3

• no solution; x = 5 is extraneous

Solve for x. Identify extraneous solutions (if any).

• x = 30

• x = 4

• x = 12

• x = 8

• x = 81
• x = -9
• x = 9
• x = -81

• x = 5
• x = -6
• x = 14
• x = -1

Determine the value of x in the equation below.

• √181

• -√181

• ±√181

• none of the above

Determine the value of x in the equation below.

• √15

• -√15

• ±√15

• none of the above

Determine the value of x in the equation below.

• √198

• -√198

• ±√198

• none of the above

x³ = 27

• 3

• 9

• 2/3

• 2

Solve the cube root equation

• 344

• 21

• -344

• -21

Solve for x; identify extraneous solutions (if any).

• x = 4

• x = - 4

• x = 1

• no solution; x = - 4 is extraneous