f(x)=3x^4-9x^3-12x^2

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Solution for f(x)=3x^4-9x^3-12x^2 equation: 


Simplifying
f(x) = 3x4 + -9x3 + -12x2

Multiply f * x
fx = 3x4 + -9x3 + -12x2

Reorder the terms:
fx = -12x2 + -9x3 + 3x4

Solving
fx = -12x2 + -9x3 + 3x4

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 + -9x2 + 3x3

Simplifying
f = -12x + -9x2 + 3x3

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