Solving Quadratics Using Square Root and Graphing

Using the square root property, find the roots of the quadratic equation.

Decide on the best method to solve this equation

2x² + 8 = 0

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Find the solution(s) to the equation 4x^2 - 16 = 0 by applying the square root method.

• x = -4

• x = ±2

• x = 4

• x = 0

Which method to solve the quadratic equation did they use?

• Graphing

• Factoring

• Square Root Method

• Completing the Square

• Quadratic Formula

Solve the equation by finding the square roots.  a²=64

• 8

• -8

• ±8

How many solutions?
x² = 4

• one

• two

• none

• infinite

Solve using the square root property:

x² - 6 = -50

True or False. When solving quadratic equations using the square root property, the first step is to isolate the squared expression.

• True

• False

Solve by taking the square root:

4x² = 100

• ±10

• ±25

• ±5

• 5

Solve by using the square root method:

x² = 49

• -7

• 7

• 49

• ±7