f(x)=5x^3+15x^2-120x

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Solution for f(x)=5x^3+15x^2-120x equation: 


Simplifying
f(x) = 5x3 + 15x2 + -120x

Multiply f * x
fx = 5x3 + 15x2 + -120x

Reorder the terms:
fx = -120x + 15x2 + 5x3

Solving
fx = -120x + 15x2 + 5x3

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -120 + 15x + 5x2

Simplifying
f = -120 + 15x + 5x2

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