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

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


Simplifying
f(x) = 4 + -1x + -3x2

Multiply f * x
fx = 4 + -1x + -3x2

Solving
fx = 4 + -1x + -3x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 4x-1 + -1 + -3x

Simplifying
f = 4x-1 + -1 + -3x

Reorder the terms:
f = -1 + 4x-1 + -3x

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