Unit 8 #1 Completing the Square

Complete the square for

x² - 12x + ____

• 144

• 36

• - 36

• 24

Complete the square.

x² + 6x + ____

• 9

• 12

• 36

• - 9

Find the missing value "c" to create a perfect square trinomial:
x² + 26x + ___ 

• 13
• 136
• 169
• 26

Complete the Square
x² + 6x = 5

• (x + 3)² = 5
• (x + 6)² = 9
• (x + 3)² = 14
• (x + 6)² = 14

What is one of the solutions to this equation?
(2x - 1)² = 49

• 7
• -7
• -4
• -3

Solve by completing the square.
x² +12x = 5

• X = 6 + √41 or  6 − √41
• X= 35 or 47
• X = −6 + √41 or  −6 − √41
• X = √35 or √47

• Divide 18 by 2, then square that number and add it to both sides of the equation

• Square 18 and then add it both sides of the equation

• It already is a perfect square

• Subtract 18x from both sides and then divide both sides by x to find the answer