Posted by Paul on Thursday, December 27, 2012 at 4:50pm.
first this software is very handy for polynomials and seeing their graphs:
http://mathportal.org/calculators/polynomials-solvers/polynomial-graphing-calculator.php
(x+6)(x+6)(x-3)
so we have double zero at x = -6 (graph comes up from way low and bounces back down off the x axis)
Then it comes back up again and goes positive at x = 3
SO
x^3+9x^2 -108 </= 0 for
x<+3
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