Solving Quadratic Equations by Taking Square Root

Solve the equation using square roots.
x² = 121

• 60.5

• ± 11

• ± 12

• 11

Use the square root property to solve the Quadratic Equation.
2(x - 4)² = 200

• ±10

• -14, 6

• -6, 14

• 100

Solve using square roots.
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

What are the solutions?

• -2, 1

• 1, 2

• -1,2

• 0,-4

When solving a quadratic equation, 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

2x²=100

• x = √25

• x = ±5√2

• x = √100

• x = ±√5

Solve.

(2x - 4)² = 16

• x = 4

• x = 10

• x = -2

• x = 0, 4

Solve the quadratic equation by taking the square roots. Allow for imaginary solutions.

Solve the equation by taking square roots: