f(x)=x^2-2-x-20

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Solution for f(x)=x^2-2-x-20 equation: 


Simplifying
f(x) = x2 + -2 + -1x + -20

Multiply f * x
fx = x2 + -2 + -1x + -20

Reorder the terms:
fx = -2 + -20 + -1x + x2

Combine like terms: -2 + -20 = -22
fx = -22 + -1x + x2

Solving
fx = -22 + -1x + 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 = -22x-1 + -1 + x

Simplifying
f = -22x-1 + -1 + x

Reorder the terms:
f = -1 + -22x-1 + x

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