g(x)=3x-x^3

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Solution for g(x)=3x-x^3 equation: 


Simplifying
g(x) = 3x + -1x3

Multiply g * x
gx = 3x + -1x3

Solving
gx = 3x + -1x3

Solving for variable 'g'.

Move all terms containing g to the left, all other terms to the right.

Divide each side by 'x'.
g = 3 + -1x2

Simplifying
g = 3 + -1x2

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