fx=x-4x^2

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Solution for fx=x-4x^2 equation: 


Simplifying
fx = x + -4x2

Solving
fx = x + -4x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 1 + -4x

Simplifying
f = 1 + -4x

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