Quadratic Formula

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.

Tags

CCSS.HSA-REI.B.4B

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3
*remember right side should =0

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve 2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 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

Solve Using the Quadratic Formula

3 - x² = 4x

• $-1\pm\sqrt{7}$

• $-2\pm2\sqrt{7}$

• $-2\pm\sqrt{7}$

• $2+\sqrt{7}$

 $Simplify\ \sqrt{225}$  

•  $\sqrt{225}$  

• 15

•  $2\sqrt{15}$  

•  $\sqrt{15}$