Quiz Practice 8th Period

Solve using square roots.  x² - 4 = 0

• x = 2
• x = 2 or -2
• x = -2
• x = 16 or -16

Solve the equation by factoring:
x² + x - 20 = 0

• x = -5 and 4
• x = 4 and 5
• x = 5 and -4
• x = -4 and -5

What are the solutions to this equation?
(x-3)(x+2)=0

• x=3,-2
• x=-3,2
• x=2,3
• x=3,2

Solve the equation by factoring:

x² + 13x + 40 = 0

• -8, 5

• -40, -1

• 5, 8

• -8, -5

Solve for r:

• -3, 4

• 3, 4

• -4, -3

• -3

• x = 7 only
  

• x = 0 only
  

• x = 0 and 7
  

• There is no real answer for this equation.
  

• No real solutions

• No real solutions

• No real solutions

• No real solutions