9.3-9.5 quiz

Solve the quadratic using the square root method

x² =25

• 5
• -5
• -5, 5

• No Real Solutions

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic using the square root method

3x² - 1 = 14

• 5
• -√5
• -√5, √5
• √5

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic using the square root method

5x² + 9 = 49

• 2√2
• -2√2
• -2√2, 2√2

• √8

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

Solve the following quadratics equation by completing the square...

x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

Tags

CCSS.HSA-REI.B.4B

• a = 4

  b = 8

  c = 3

• a = 4

  b = -8

  c = -3

• a = 4

  b = -8

  c = 3

• a = 4

  b = 8

  c = -3

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

Tags

CCSS.HSA-REI.B.4B

What is this formula?

• Standard form

• Quadratic formula

• Factored form

• None of the above

Tags

CCSS.HSA-REI.B.4B

Solve Using the Quadratic Formula 
2x² + 7x - 15 = 0

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5

Tags

CCSS.HSA-REI.B.4B

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4
• -4 & 10
• -8 & 4
• -4 & 8

Tags

CCSS.HSA-REI.B.4B