Solving Quadratics by Reasoning

What are the solutions to this equation?
(3x-2)(5x+1)=0

• x=5/2,-1/3
• x=1/5,-2/3
• x=1/3,-5/2
• x=2/3,-1/5

Tags

CCSS.HSA-REI.B.4B

What are the solutions?

• 0 and 8
• -2 and -4
• 3 and -1
• 2 and 4

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

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

Tags

CCSS.HSF-IF.C.7D

Solve by factoring:
 n² - 2n = 0

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

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:
2x² + 11x - 6 = 0

• 1/2 and -6
• 6 and -1/2
• 2 and -6
• 11

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:
 x² - 11x + 19 = -5?

• (x - 3)(x - 8)
• (x + 12)(x - 2)
• (x + 3)(x + 8)
• (x - 12)(x + 2)

Tags

CCSS.HSA-REI.B.4B

Solve by square roots (SADMEP)

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

Solve by square roots (SADMEP)
x² - 64 = 0

• 64
• 8
• 8 or -8
• 1 or -64

Tags

CCSS.8.EE.A.2

Solve by square roots (SADMEP)
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.8.EE.A.2

Solve using the quadratic formula

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B