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Simplifying
f(x) = 3x4 + 2x3 + -5x2 + x + -2

Multiply f * x
fx = 3x4 + 2x3 + -5x2 + x + -2

Reorder the terms:
fx = -2 + x + -5x2 + 2x3 + 3x4

Solving
fx = -2 + x + -5x2 + 2x3 + 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 = -2x-1 + 1 + -5x + 2x2 + 3x3

Simplifying
f = -2x-1 + 1 + -5x + 2x2 + 3x3

Reorder the terms:
f = 1 + -2x-1 + -5x + 2x2 + 3x3
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