Question 218953
X to the power of 3 or cubed + 216 = 0 ::::: we factor out (x+6) and are left with (x squared -6x + 36) ::: we know the answer is 3 plus or minus 3(times square root of 3i) but can't get there ::: 
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{{{x^3 + 216 = 0}}}
{{{(x+6)*(x^2 - 6x + 36) = 0}}}
x = -6
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*[invoke solve_quadratic_equation 1,-6,36]