Solving Quadratic Equations

Solve the equation.

x² + 4x= 12

• x = 2 and -2
• x = -6 and 2
• x = 6 and -2
• x = 1 and -1

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Solve the equation:

• -4, 2

• -2, 4

• -16

• -4

Solve the equation:

• x = 3, x = -6

• x = 0, x = 2

• x = 2, x = 3

• x = -2, x = 1

What are the solutions?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

How many solutions (x-intercepts) does the quadratic have?

• Two Solutions
• One Solution
• 0 Solutions
• I don't know

Solve.
n² - 5 = -4

• n = ±√9
• n = ±3
• n = ±1
• No real solution

• No real solutions

• No real solutions

• No real solutions