Solving Quadratic Equations

Solve for the values of x:
(x + 2)(x - 3) = 0

• { 2, 3 }
• { -2, -3 }
• { 2, 3 }
• { -2, 3 }

Tags

CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula:

2x² + 2x − 12 = 0

• x = −2, 3

• x = 2, 3

• x = 2, −3

• x = −2, −3

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

First step to solve this quadratic equation?

5m² + 1 = 6

• add 1 to both sides

• subtract 1 from both sides

• divide both sides by 5

• take the square root on both sides

Tags

CCSS.HSA-REI.B.4B

Solve using square roots.

4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.8.EE.A.2

(x - 2) ² = 9

• x=3 and x= -3

• x=5 and x= -1

• x= -5 and x=1

• x=9 and x= - 9

Tags

CCSS.HSA-REI.B.4B

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.

Tags

CCSS.HSA-REI.B.4B

What is the best method for solving this quadratic equation?

(x + 1) ² = 25

• Square Root Method

• Factoring a GCF

• Factoring by finding the factors of (25) that add to give (1)

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

• x = 3, x = -6

• x = 0, x = 2

• x = 2, x = 3

• x = -2, x = 1

Tags

CCSS.HSA-REI.B.4B