- #1
cue928
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I am feeling stupid over this one but I cannot remember how to solve it. I have the following cubic equation:
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.
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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