Solving Quadratic Equations by Square Root Method

Solve the equation using Square Roots Method:

Solve the equation using Square Roots Method:

Solve by using the square root method:

• No Solution

• x = 3, -3

• x = -21, 21

• x = 7, -7

Solve using square roots.
7b² - 4 = 59

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

Find the roots of the quadratic equation 2s² = 50.

• s = 25 and s = -25

• s = 5 and s = -5

• s = 5 and s = 25

• s = -5 and s= -25

When do you use the plus or minus symbol?
±

• After taking the square root of both sides

• After adding the square to both sides

• After taking half of b

• After setting the equation equal to zero

3x² = 12

• ± 2

• 2

• ± √12

• ± 4

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

• ±0

• ±10

• {10, 0}

• {-10, 0}