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

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


Simplifying
f(x) = x2 + -12x + -3

Multiply f * x
fx = x2 + -12x + -3

Reorder the terms:
fx = -3 + -12x + x2

Solving
fx = -3 + -12x + x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -3x-1 + -12 + x

Simplifying
f = -3x-1 + -12 + x

Reorder the terms:
f = -12 + -3x-1 + x

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