Final Exam Review: Unit 9

Complete the Square and solve the equation.
m² + 12m + 19 = 0

• - 6 ± √ - 19
• 6 ± √ 19
• - 23, - 11
• - 6 ± √ 17

Complete the Square and solve the equation.
m² - 16m = -59

• 8
• 8 ± √ 5
•  ± √ 13
• -8 ± √ 5

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4
• 2
• 8
• 20

What is the first step to solving THIS equation by completing the square?

a² + 10a + 21 = 0

• Set the equation equal to zero

• Divide 10 by 2 and add the result to both sides

• Add a² and 10a together

• Subtract the 21

What should be added to both sides of the following equation to complete the square?
x² + 12x = 5

• 12
• 6
• 36
• 5

• b = 2

• b = -8

• b = 13

• b = 8