Unit 3b Check Review

 Divide:

 $\left(4x^4+18x^3+3x^2-18x+9\right)\div\left(x+4\right)$  

•  $4x^3+2x^2-5x+2\ +1$  

•  $4x^3+2x^2-5x+2\ +\frac{1}{x-4}$  

•  $4x^3+2x^2-5x\ +\frac{2}{x-4}$  

•  $4x^3+2x^2-5x+2\ +\frac{1}{x+4}$  

Tags

CCSS.HSA.APR.D.6

Demarcus divided

 $\left(x^3-2x^2-9x+18\right)\div\left(x-2\right)$  
and got a remainder of 0. What does this mean?

• x-2 is not a factor and x = 2 is not a root

• x+2 is a factor and x = -2 is a root

• x is a factor and x = 0 is a root

• x-2 is a factor and x = 2 is a root

Tags

CCSS.HSA.APR.B.2

Name all of the possible roots for:

 $2x^3+16x^2+19x+6$  
 
(rational root theorem)

• +/- 1, 2, 3, 4, 5, 6

• +/- 1/2, 2/3, 3, 6

• +/- 1/2, 3/2,1, 3

• +/- 1/2, 3/2,1, 6

How many complex roots does the polynomial function have?

 $f\left(x\right)=x^4+3x^3+5x^2-3x-6$  

• 2

• 3

• 4

• 5

Tags

CCSS.HSN.CN.C.9

How many complex zeros does the polynomial equation have?

 $0\ =\ 2x^5+6x^3-32$  

• 2

• 3

• 4

• 5

 $x^4+7x^2+10$  

Factor:

•  $\left(x+5\right)\left(x+2\right)$  

•  $\left(x-5\right)\left(x-2\right)$  

•  $\left(x-1\right)\left(x+1\right)\left(x^2+5\right)$  

•  $\left(x^2+5\right)\left(x^2+2\right)$  

Tags

CCSS.HSA.APR.C.4

Write a possible polynomial function in factored form with roots:

0, -4, 3

• x(x+4)(x-3)

• x(x-4)(x+3)

Tags

CCSS.HSA.APR.B.3

Which graph represents:
 $y\ =\ x^4-3x^2+x-5$  

• 
• 
• 
• 

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A