A free falling object increases speed by a little over 22 miles per hour each second. The arithmetic sequence 22,44,66..., repre
sents the speed after each second, in miles per hour, of a dropped object. How fast is a rock falling after 8 seconds if it is dropped over the side of a cliff
No, it is not. If x+1 is a factor, x=-1 would be one of the zeros. Plug x=-1 in the polynomial to see it is results in a 0: 2(-1)^3-9(-1)^2+13(-1)-6=-30≠0, therefore, x+1 is not a factor.