Solving Quadratic Equation

Choose the best method to solve this quadratic:

​ (a)  

2(x + 2)² - 5 = 8

• Square Roots

• Quadratic Formula

• ZPP

What mathematical process did they use?

• Square Roots

• Quadratic Formula

• ZPP

Decide on the best method:

x² - 3x - 54 = 0

• ZPP

• Complete the Square

• The Quadratic Formula

The solutions of the quadratic equation
x²-5x+6=0 are

• x=1 or x=-6

• x=3 or x=2

• x=-3 or x= 2

• x=-1 or x=6

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5

• x = 5 or x = -3

• x = -5 or x = 3

• x = -3 or x = -5

Solve using the quadratic formula.
2x² - 9x - 35 = 0

• x = 7/2, x = -6

• x = -5/2, x =5

• x = -3/7, x =6

• x = -5/2, x = 7

What are the roots / solutions of the quadratic equation 3x² = 300 ?

• x = 10

• x = 9

• x = + 9

• x = + 10

How many solution does a quadratic equation x² - 9 = 16 have ?

• none

• 1

• 2

• 3

The solutions of the quadratic equation 
x²+5x+6=0 are

• x= -3 or x = -2

• x = -6 or x = 1

• x = 3 or x = 2

• x = -3 or x = 2

What is this formula?

• This is the speed of light formula.

• This is the quadratic formula.

• This is the zero product property.

• This is scary.