f(8)=x^2-4x+k

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Solution for f(8)=x^2-4x+k equation: 


Simplifying
f(8) = x2 + -4x + k

Reorder the terms for easier multiplication:
8f = x2 + -4x + k

Reorder the terms:
8f = k + -4x + x2

Solving
8f = k + -4x + x2

Solving for variable 'f'.

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

Divide each side by '8'.
f = 0.125k + -0.5x + 0.125x2

Simplifying
f = 0.125k + -0.5x + 0.125x2

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