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

Question

x = -4 and x = -1

Answer 1

y = (x+4)(x+1)^3
y = (x+4)^2 (x+1)^2
y = (x+4)^3 (x+1)

Answer 2

these are my choices
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

Answer 3

well, then you better expand my solutions to see which fits.

Answer 4

I got the answer as and it was right :)
A. y = x4 + 5x3 + 5x2 + 5x + 4