A2 - W12

Solve
x² + 13x + 12=0

• x = -12, -1
• x = 12, 1
• x = 13, 1
• x = -13, -1

Tags

CCSS.HSA-REI.B.4B

Solve:
x² + 4x = 12

• x = 2 and -2
• x = -6 and 2
• x = 6 and -2
• x = 1 and -1

Tags

CCSS.HSA-REI.B.4B

Solve: 
2x² + 17x + 21 = 0

• x= ^-21/₂, -17
• x= ²/₃, 16
• x=-7, ^-3/₂
• x=15, -³/₇

Tags

CCSS.HSA-REI.B.4B

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.8.EE.A.2

Solve:
(x - 2)² = 25

• 3, 8
• 5, -5
• 7, -3
• 7

Tags

CCSS.8.EE.A.2

Is x = 4 and/or x = 3 a solution to the quadratic below?
x² - x - 6 = 0

• Both of them are solutions
• Only x = 4 is a solution
• Only x = 3 is a solution
• Neither of them is a solution

Tags

CCSS.HSA-REI.B.4B

What makes a polynomial equation "quadratic"?

• If the equation can be written in the form y = ab^x (or y = ab^x + c)
• Any equation that is not linear or exponential is quadratic.
• The polynomial equation has 4 terms. 
• The degree (or highest exponent) of the polynomial is 2. 

the square root √-25 is..

• 5i
• -5
• 25i
• -5i

-√144

• 12i
• -12i
• -12
• None of the above

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.HSA.APR.B.3