A Anthonyk2013 Junior Member Joined Sep 15, 2013 Messages 132 Oct 22, 2015 #1 On the second line under the graph you have 64-16X^2+X^4, what happens to X^4 in the next few steps. Attachments image.jpg 11.8 KB · Views: 4
A Anthonyk2013 Junior Member Joined Sep 15, 2013 Messages 132 Oct 22, 2015 #2 Silly me. They cancel out. Sorted.
