Question 1033979
i believe it will be 7.


i used synthetic division to figure it out.


my worksheet is shown here.
look below the worksheet for more comments.
<img src = "http://theo.x10hosting.com/2016/051101.jpg" alt="$$$" </>
if you need a tutorial on how to do synthetic divison, look here.
<a href = "http://www.mesacc.edu/~scotz47781/mat120/notes/divide_poly/synthetic/synthetic_division.html" target = "_blank">http://www.mesacc.edu/~scotz47781/mat120/notes/divide_poly/synthetic/synthetic_division.html</a>
i set it up for synthetic division with the coefficient of the leading term as a.
i then went through the process and wound up with 5 + (2-a) as the last result.
this last result is the remainder.
i then set it to 0 and solved for a to get a = 7.
i then testing that out to see if i wind up with a remainder of 0, which i did.
that's your solution.
a = 7.