Question 993065
<pre>
2x²+16x+2

Don't start out trying to use the AC method first.
Always look for a common factor first. The AC method 
will wait till later -- if it can be used at all.

First factor out the common factor 2:

2(x²+8x+1)

As it turns out it is not factorable any further.  So
the AC method will not work here. So the final factored
form is simply

2(x²+8x+1)

Edwin</pre>