<PRE><B>Question 970970</B>
i was only able to find the x-intercept by graphing.
this expression does not have rational roots so the rational roots test failed.
all other tests failed.
i tried 2 online factoring calculators and they couldn&#39;t factor it.
those calculator can be found at:
&lt;a href = &quot;http://www.tiger-algebra.com/&quot; target = &quot;_blank&quot;&gt;http://www.tiger-algebra.com/&lt;/a&gt;
&lt;a href = &quot;http://www.mathportal.org/calculators/polynomials-solvers/polynomial-factoring-calculator.php&quot; target = &quot;_blank&quot;&gt;http://www.mathportal.org/calculators/polynomials-solvers/polynomial-factoring-calculator.php&lt;/a&gt;
the only other recourse was to graph it and see where the zero crossing are.
the x-intercept is at x = .2828575.
there is only one x-intercept.
the equation was not able to be factored in any of the usual ways.
the graphing solution is shown below:
&lt;img src = &quot;http://theo.x10hosting.com/2015/051804.jpg&quot; alt=&quot;$$$&quot; &lt;/a&gt;
the answer shown there is rounded.
i was able to get more decimal places using my TI-84 Plus graphing calculator.</PRE>