Completing the Square Quiz IM2

What are the zeros of (2x+5)(x-6)=?

• -6, 5/2

• -5/2, 6

• 6, 2

• 5, -6

Tags

CCSS.HSF-IF.C.7C

Factor:

 $x^2-10x-24$  

•  $(x+2)(x+12)$  

•  $(x+3)(x-8)$  

•  $(x+2)(x-12)$  

• Not factorable

Use the graph of y=-x²+6x-5 to solve the equation -x²+6x-5=0

• {-1,5}

• {3,4}

• {1,5}

• {2,4}

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.11

Solve for x:

(x + 6)² = 49

• x=7,12

• x=±7

• x=1,-13

• x=43,-55

Tags

CCSS.8.EE.A.2

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

a² + 10a + 21 = 0

• Leave the equation equal to zero

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

• Add a² and 10a together

• Subtract 21 from both sides

Tags

CCSS.HSA-REI.B.4B

What number goes in the blank to complete the square for this trinomial?

x² – 8x + ___

• -4

• -16

• 4

• 16

Tags

CCSS.HSA-REI.B.4B

When solving the equation x² - 12x + 4 = 20

by completing the square , what values would go in the two blanks?

(________)² = ______

• x - 12; 42

• x - 6; 16

• x - 6; 42

• x - 6; 56

Tags

CCSS.HSA-REI.B.4B

Complete the Square
x² + 10x + ____

• x² + 10x - 100
• x² + 10x + 100
• x² + 10x - 25
• x² + 10x + 25

Tags

CCSS.HSA-REI.B.4B

Solve the equation by completing the square and then finding the roots. 
x²+ 6x - 4 = 36

• x = -7, 7
• x = 4, -10
• x = -4 +- √7
• x = 10, -4

Tags

CCSS.HSA-REI.B.4B

Solve the following equation by completing the square:
n² - 2n - 3 = 0

• {3 and-1}
• {4 and -4}
• {5 and -3}
• {8 and -7}

Tags

CCSS.HSA-REI.B.4B