Solve Quadratic Equations by Factoring

Solve
8n² + 10n - 3 = 0

• n = ^-1/₈, ¹⁰/₃
• n = ⁴/₅, - 2
• n = ¹/₄, ^-3/₂
• n = 2, -12

Tags

CCSS.HSA.REI.B.4

Solve using Zero-Product Property.
(2x-2)(5x-5) = 0

• x = -1
• x = -1 or x = 1
• x = 1

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

n² - 2n = 0

• n = 2 and 0
• n = -2 and 0
• n = 2
• n = 0

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

What are the zeros of the function below?
(x - 6)(2x + 4) =0

• x = -6, x = -4
• x = 6, x = -2
• x = 4, x = 6, x =2
• cannot be determined

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

• ±1.5
• 1.5
• ±1
• No real solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve by factoring:

x² + 6x + 20 = -3x

• x = -2, x = -10

• x = -3, x = -4

• x = -4, x = -5

• x = -4, x = -6

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve.
 2x² + 7x = 15

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

Tags

CCSS.HSA.REI.B.4

Solve by factoring.
6x² - 17x + 13 = 20x² - 32

• x = 5/3 or x = 9/2
• x = -5/2 or x = 9/7
• x = -5/2 or x = -9/7
• x = -5/3 or x = 9/2

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

What is another word that describes the zeroes of a quadratic function?  

• y-intercepts
• vertex
• x-intercepts
• maximum

Tags

CCSS.HSA.APR.B.3

Factor by grouping: 
30x³+15x²-18x-9

• (5x²-3)(6x+1)
• (5x²-3)(6x+3)
• 3(5x²+3)(2x-1)
• 3(5x²-3)(2x+1)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3