Quadratic Equations Square Root Method

What are the values of n?

• A

• B

• C

• D

What are the values of n?

• A

• B

• C

• D

Solve using the square root method:

x² - 49 = 0

• x = -7, x = 7

• x = -7

• x = 7

• x = -7, x = 1

Solve for x
x² - 3 = 78

• -9,9

• 9

• -9

• -√75, √75

Solve the quadratic using the square root method

5x² + 9 = 49

• 2√2

• -2√2

• -2√2, 2√2

• √8

Solve using square root method

3x² = 12

• ± 2

• 2

• ± √12

• ± 4

• 4

x² = 16

• ± 4

• ± 8

• 4

• 8

Decide on the best method:
x² - 18 = 0

• Square Root Method

• Factor Method 

• Complete the Square

• Quadratic Formula

• -3

• 3

• 4

• 1

• 2

• -2

• 8

• 0

• 5

• 11

What are the zeros of the function? Use the square root method to solve.

• ±0

• ±10

• {10, 0}

• {-10, 0}