<PRE><B>Question 24355</B>
&lt;pre&gt;&lt;b&gt;              &lt;font size = 3&gt;               (3b + 2/3)(6b - 1/3) 
Use FOIL:
                 (3b)(6b) - (3b)(1/3) + (2/3)(6b) - (2/3)(1/3)
                     &lt;font face = &quot;symbol&quot;&gt;Ż&lt;/font&gt;          &lt;font face = &quot;symbol&quot;&gt;Ż&lt;/font&gt;            &lt;font face = &quot;symbol&quot;&gt;Ż&lt;/font&gt;          &lt;font face = &quot;symbol&quot;&gt;Ż&lt;/font&gt;  
                    18b&lt;sup&gt;2&lt;/sup&gt;  -     b     +     4b    -    2/9
                       
                             18b&lt;sup&gt;2&lt;/sup&gt; + 3b - 2/9  



                                      4xy&lt;sup&gt;3&lt;/sup&gt;(2x-y)(3x+y)

Use FOIL on the two parenthetical expressions  

                                   4xy&lt;sup&gt;3&lt;/sup&gt;(6x&lt;sup&gt;2&lt;/sup&gt;+2xy-3yx-y&lt;sup&gt;2&lt;/sup&gt;)

Combine like terms, realizing that xy and yx are the same

                                     4xy&lt;sup&gt;3&lt;/sup&gt;(6x&lt;sup&gt;2&lt;/sup&gt;-xy-y&lt;sup&gt;2&lt;/sup&gt;)

Use distributive principle:
                                 24x&lt;sup&gt;3&lt;/sup&gt;y&lt;sup&gt;3&lt;/sup&gt; - 4x&lt;sup&gt;2&lt;/sup&gt;y&lt;sup&gt;4&lt;/sup&gt; - 4xy&lt;sup&gt;5&lt;/sup&gt;

Edwin
AnlytcPhil@aol.com&lt;/pre&gt;     </PRE>