Completing the Square Review

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.SSE.A.2

CCSS.HSA.SSE.B.3

Complete the square for

x² - 12x + ____

• 144

• 36

• - 36

• 24

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Complete the square.

x² + 6x + ____

• 9

• 12

• 36

• - 9

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Given the perfect square trinomial, identify the equivalent expression

x²-18x+81

• (x-18)²

• (x-9)²

• (x+81)²

• (x+9)²

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve by completing the square.

x² + 10x = -9

• 1 and -12

• -1 and -9

• 1 and -9

• 1 and -1

Solve. x² + 4x - 16 = 0

• 
• 
• 
• 

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve by Completing the Square: Round to the nearest tenth.

2x²+4x-5=7

Hint: Move the 5 and you must have a lead number of 1!

• -0.4 and -3.4

• -2.3 and 4.3

• -3.6 and 1.6

• no solution

Write the following quadratic expression in vertex form...

x² + 4x + 10

• (x + 4)² + 6

• (x + 2)² + 6

• (x + 4)² - 6

• (x + 2)² - 6

Write the following quadratic expression in vertex form...

x² + 8x + 2

• (x + 4)² - 14

• (x + 4)² - 6

• (x + 4)² - 18

• (x + 4)² + 6

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

• 7
• -7
• -4
• -3