Quadratic Equations and Square Root Property

Can this quadratic be solved by BOTH square root method AND difference of squares?
16x² - 25 = 0

• Yes!

• No - just square root method

• No - just difference of squares method

Can this quadratic be solved by BOTH square root method AND difference of squares?
2x² - 7 = 0

• Yes!

• No - just square root method

• No - just difference of squares method

The discriminant is

• ax²  + bx  +  c

• - b/2a

• b² - 4ac

• b² + 4ac

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

How do I find the "MAGIC Number" when completing the square?

• Move c to the other side

• b value divide by 2 and square 

• Make 2 equations, one = + and one = -

• Square root both sides

What method works 100% of the time? 

• Greatest Common Factor (GCF)

• Quadratic Formula

• Factoring

• Square Root Method

When should you decide to Complete the Square?

• When the a value is larger than 1

• When the middle term is odd

• When a = 1 and the middle term is even

Solve by the Square Root method: x² = 16

• ± 4

• ± 8

• 4

• 8

Solve the following quadratics equation by completing the square...

x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

Which TWO methods could be used to solve this equation?

x² + 2x = -9

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula