Completing the Squares

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

What is the first step to solve this quadratic equation by completing the square? x^2-10x+21=0

• Set the equation equal to zero

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

• Subtract the 21 from  both sides

Tags

CCSS.HSA-REI.B.4B

What value should be added to complete the perfect square trinomial?

• None needed.

Tags

CCSS.HSA-REI.B.4B

What value should be added to complete the perfect square trinomial?

Tags

CCSS.HSA-REI.B.4B

• 
• 
• 
• 

Tags

CCSS.HSA-REI.B.4B

Solve for the POSITIVE SOLUTION ONLY of x by completing the square. ROUND to the nearest hundredth (2 decimal places).

Mathematical Equivalence

ON

Tags

CCSS.HSA-REI.B.4B

Complete the square for: v² - 18v + 87 = 7

• (v + 9)² - 1

• (v + 9)² + 1

• (v - 9)² - 1

• (v - 9)² + 1

Tags

CCSS.HSA-REI.B.4B

• F
• G
• H
• I

Tags

CCSS.HSA-REI.B.4B

• + 49

• - 49

• + 36

• - 36

• + 6

• - 6

• + 7

• - 7

Tags

CCSS.HSA-REI.B.4B

Kevin wants to solve the equation by completing the square. What values complete the equation?

• 8

• 64

• 16

• 4

• 256

Tags

CCSS.HSA-REI.B.4B