I am feeling stupid over this one but I cannot remember how to solve it. I have the following cubic equation:(adsbygoogle = window.adsbygoogle || []).push({});

4x^3 - 32x = -12

I get the solution of x = -3 but not the other two.

I initially had it factored as: 4x(x^2 - 8) = -12

Did 4x = -12, got x = -3

But then I could not get the other two solutions.

Sorry for the simple question, just can't remember what you're supposed to do on these.

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# Cubic question

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