<PRE><B>Question 980621</B>
&lt;pre&gt;&lt;font size = 4&gt;
x³+7x²+1x+7

We factor x² out of the first two terms
We factor +1 out of the last two terms

x²&lt;font color=&quot;red&quot;&gt;&lt;b&gt;(x+7)&lt;/b&gt;&lt;/font&gt;+1&lt;font color=&quot;red&quot;&gt;&lt;b&gt;(x+7)&lt;/b&gt;&lt;/font&gt;

Now there are only 2 terms.

We notice that &lt;font color=&quot;red&quot;&gt;&lt;b&gt;(x+7)&lt;/b&gt;&lt;/font&gt; is a common factor of both
those terms, so we factor out &lt;font color=&quot;red&quot;&gt;&lt;b&gt;(x+7)&lt;/b&gt;&lt;/font&gt;

&lt;font color=&quot;red&quot;&gt;&lt;b&gt;(x+7)&lt;/b&gt;&lt;/font&gt;(x²+1)

Edwin&lt;/pre&gt;&lt;/font&gt;</PRE>