Solving Quadratics by Square Root and Zero Product Property

Which answer below has the correct zero's

• 2 and -5

• -10 and -3

• -2 and 5

• -1 and 10

Given the zeros below, what are the factors?

• (3x-2) (4x-1)

• (2x-3) (1x-4)

• (3x-2) (1x-4)

• (2x-3) (4x-1)

Suzie solves the equation below:
x² + 4x - 12 = 2
(x - 2)(x + 6) = 2, 
by setting x -2 = 0 and x + 6 = 0. 
Her solutions are x = 2 and x = -6.
Is Suzie correct? Why or why not?

• Yes, she factored correctly and then used the zero product property

• Yes, she factored correctly and then square rooted.

• No, she did factor correctly, but she can't use the zero product property as shown.

• No, she didn't factor correctly so the rest of her work is wrong. 

Which method is MOST EFFICIENT to solve:
8x²  -  6  = 0

• Square Root Method

• Greatest Common Factor (GCF)

• Complete the Square

• Quadratic Formula

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

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

What is this?

• This is the speed of light formula.

• This is the quadratic formula.

• This is the zero product property.

• This is scary.

Solve by the Square Root method: x² = 16

• ± 4

• ± 8

• 4

• 8

Solve by the Square Root method:

-5x² = -50

• ± 5

• ± 10

• ± √10

• -10

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