Solve Quadratics in Standard Form

What mathematical process did they use?

• Differentiation

• Quadratic Formula

• Factoring

• Completing the Square

Tags

CCSS.HSA-REI.B.4B

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula:
4x² + 4x + 1 = 0

• x = -½

• x = -2

• x = 0

Tags

CCSS.HSA-REI.B.4B

Solve 3x^2 - 2x = 8

• A. No Solution

• B. -2 or 4/3

• C. 2

• D. -4/3 or 2

Tags

CCSS.HSA-REI.B.4B

x² = 4x + 21

• x = 7 or x = -3

• x = 5 or x = 21

• x = -4 0r x = -7

• x = 3 or x = -21

Tags

CCSS.HSA-REI.B.4B

x²+8x+3=17

• 4±√30

• -4±√30

• 2, -10

• -2, 10

Tags

CCSS.HSA-REI.B.4B

Solve for x.  Round to the nearest hundredth if necessary.
x² + 6x + 5 = 45

• x = -10, 4

• x = -4, 10

• x = 4, 10

• x = -10, -4

Tags

CCSS.HSA-REI.B.4B

Solve for b:

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Tags

CCSS.8.EE.A.2

The sum of a quadratic term, a linear term, and a constant in descending order

• point-slope form

• slope-intercept form

• standard form  

• vertex form

Solve for x.  Round to the nearest hundredth if necessary.
2x² + 8x = 5x + 20

• x = 2.5, -4

• x = -4, 2.5

• x = 1.28, -7.78

• x = -1.28, 7.78

Tags

CCSS.HSA-REI.B.4B