Solve Expressions Involving Square Root

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

• x = 8

• x = 18

• x = 28

• no solution; x = 8 is extraneous

Solve.

• no solution

• 6

• 3

• 4

Solve

• -5

• 5

• 10

• 25

Solve.

• 8

• -8

• 0

• no solution

√196 = ______

• 14

• 14²

• 15

• 15²

• √32, √324, √101, √44
• √64, √121, √324, √361
• √64, √324, √361, √44
• √32, √44, √101, √64

Which number is the square root of 324?

• 18²

• 18

• √18

• 18/2

Which number is closest to the approximate value of √380?

• 18.5

• 19

• 19.5

• 20

What is the square root of 100?

• 10

• 200

• 50

• 1000

What is the square root of 36?

• 4

• 6

• 18

• 1296