Solve Quadratic Equations by Taking Square Roots

Solve by taking square roots:

5m² + 1 = 6

• m = 1

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

Solve using square roots.
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

Solve by taking square roots.

x² +12 = 5

• x = ± 49

• No Real Solutions

• x = ± √7

• x = ± 5/12

Solve the equation using square roots.
x² = 121

• 60.5
• ± 11
• ± 12
• 11

What are the solutions?

• -2, 1
• 1, 2
• -1,2
• 0,-4

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

• ±10
• -14, 6
• -6, 14
• 100

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

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

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