Solving multi-step problems using quadratic equations in one variable

What is the discriminant of 2x² + 2x + 4?

• -28
• 8
• 36
• 28

• True

• False

There are 3 methods to solve quadratic equations except

• completing the square
• factorisation
• completing the square root
• using a formula

• Extracting the Root

• Factoring

• Completing the Square

• Quadratic Formula

How many real solutions does -4v² - 4v - 1 = 0 have?

• 2

• 1

• 0

Solve using the quadratic formula...

2x² + 22 = 16x

•  $4\pm\sqrt{5}$  

•  $4\pm3\sqrt{3}$  
  

•  $-4\pm\sqrt{5}$  
  

•  $-4\pm3\sqrt{3}$  

Solve using the quadratic formula...round your answer to the nearest hundredth

9x² = 4 + 7x

• x = 2 and x = 3

• x = -1 and x = .25

• x = 1 and x = -.45

• x = 1.16, and x = -.38

• 
• 
• 
• 

Choose the best method to solve"
 $x^2+2x=3$  

• Square Roots

• Factoring

• Complete the Square

• Quadratic Formula