Completing the Square

Create a Perfect Square Trinomial
x² + 22x + ____

• 11
• - 11
• 121
• -121

Tags

CCSS.HSA-REI.B.4B

Create a Perfect Square Trinomial
x² + 18x + ____

• 81
• -18
• 9
• -9

Tags

CCSS.HSA-REI.B.4B

Create a Perfect Square Trinomial
x² - 30x +  ____

• -15
• 225
• 30
• 25

Tags

CCSS.HSA-REI.B.4B

Complete the Square and solve the equation.
a² - 2a - 35 = 0

• 1 ± √ 6
• -7, 7
• -5, 7
• 35, 37

Tags

CCSS.HSA-REI.B.4B

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

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

Tags

CCSS.HSA-REI.B.4B

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Tags

CCSS.HSA-REI.B.4B

To solve by completing the square, what needs to be moved in this equation?
x² = 9 - 4x

• the -4x
• the 9
• the x²

Tags

CCSS.HSA-REI.B.4B

Complete the Square
x² + 6x = 5

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

Tags

CCSS.HSA-REI.B.4B

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

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B