Solving Using Square Root Method

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

3x² = 12

• ± 2

• 2

• ± √12

• ± 4

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

(x - 2) ² = 9

• ± 3

• 5  or  -1

• -5  or  1

• ± 9

Solve by taking square roots:
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

(x-5)² = 25

• ±0

• ±10

• 10, 0

• -10, 0

Solve by the Square Root method: x² = 16

• ± 4

• ± 8

• 4

• 8

Which is the BEST method to use to solve this equation?

3a² = 27

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Solve by the Square Root method:

-5x² = -50

• ± 5

• ± 10

• ± √10

• -10