Synthetic Division: Computations w/ Radicals
You need to be very careful working problems like this. It's easy to make mistakes.
Note that, since this second synthetic division handled the conjugate radical root, all the complex coefficients disappeared. You should expect this to happen. Whenever you have roots that are conjugates, dividing out one of those roots will make things very messy, but then dividing out the other will clean things back up. Copyright © Elizabeth Stapel 20022011 All Rights Reserved If you want to get the right answers, do not try to do the messier parts in your head or in the margins; take out a sheet of scratch paper and do your work properly.



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