Question 331534
{{{x^3+7x^2-21x-27=0}}}
{{{(x^3-27)+(7x^2-21x)=0}}}
{{{(x^3-3^3)+7x(x-3)=0}}}

hmm no solution that i can figure
i also tried this
http://www.algebrahelp.com/calculators/equation/calc.do?equation=x%5E3%2B7x%5E2-21x-27%3D0&solvf=AUTO
doesnt compute either