f(x)=3x^3+7x^2-6x

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Solution for f(x)=3x^3+7x^2-6x equation: 


Simplifying
f(x) = 3x3 + 7x2 + -6x

Multiply f * x
fx = 3x3 + 7x2 + -6x

Reorder the terms:
fx = -6x + 7x2 + 3x3

Solving
fx = -6x + 7x2 + 3x3

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -6 + 7x + 3x2

Simplifying
f = -6 + 7x + 3x2

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