What is a quartic function with only the two real zeros given?

x = -4 and x = -1
A. y = x4 + 5x3 + 5x2 + 5x + 4
B. y = x4 - 5x3 - 5x2 - 5x - 4
C. y = -x4 + 5x3 + 5x2 + 5x + 4
D. y = x4 + 5x3 + 5x2 + 5x - 5

Question

What is a quartic function with only the two real zeros given?

x = -4 and x = -1
  A. y = x4 + 5x3 + 5x2 + 5x + 4 	
  B. y = x4 - 5x3 - 5x2 - 5x - 4 	
  C. y = -x4 + 5x3 + 5x2 + 5x + 4 	
  D. y = x4 + 5x3 + 5x2 + 5x - 5

anonymous · Answer

http://www.wolframalpha.com/input/?i=x^4+%2B+5+x^3+%2B+5+x^2+%2B+5+x+%2B+4

anonymous · Answer

It seems that
$$
x^4+5 x^3+5 x^2+5 x+4=(x+1) (x+4)
   \left(x^2+1\right)
$$
What is your choice?

anonymous · Answer

Thank you...Ummmm they look like this
  A. y = x4 + 5x3 + 5x2 + 5x + 4 	
  B. y = x4 - 5x3 - 5x2 - 5x - 4 	
  C. y = -x4 + 5x3 + 5x2 + 5x + 4 	
  D. y = x4 + 5x3 + 5x2 + 5x - 5

anonymous · Answer

Are you factoring?

anonymous · Answer

Ohhhh is it A

anonymous · Answer

Yes