f(x)=12+72x+3x^2-x^3

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Solution for f(x)=12+72x+3x^2-x^3 equation: 


Simplifying
f(x) = 12 + 72x + 3x2 + -1x3

Multiply f * x
fx = 12 + 72x + 3x2 + -1x3

Solving
fx = 12 + 72x + 3x2 + -1x3

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 12x-1 + 72 + 3x + -1x2

Simplifying
f = 12x-1 + 72 + 3x + -1x2

Reorder the terms:
f = 72 + 12x-1 + 3x + -1x2

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