<PRE><B>Question 1015884</B>

I am learning about polynomials but when I have to solve them the steps get me confused. Please help me! 
Factor the polynomials:
1.) x^2 + 6x - 9
2.) 18y^2 - 48y + 32
3.) 81 + 16k^2

&lt;b&gt;&lt;u&gt;1.&lt;/b&gt;&lt;/u&gt;
&lt;pre&gt;{{{x^2 + 6x - 9}}} CANNOT be factored with INTEGERS&lt;/pre&gt;
&lt;b&gt;&lt;u&gt;2.&lt;/b&gt;&lt;/u&gt;&lt;pre&gt;{{{18y^2 - 48y + 32}}}
{{{2(9y^2 - 24y + 16)}}}
2[3y(3y - 4) - 4(3y - 4)]
{{{matrix(1,1,2(3y - 4)(3y - 4))}}} ------&gt; {{{highlight(highlight_green(highlight(2(3y - 4)^2)))}}}&lt;/pre&gt; 
&lt;b&gt;&lt;u&gt;3.&lt;/b&gt;&lt;/u&gt;&lt;pre&gt;{{{81 + 16k^2}}} ------- Imaginary factors -------&gt; {{{highlight(highlight_green(highlight((9 - 4ki)(9 +4ki))))}}}</PRE>