f(x)=0.5x*x+2x+c

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Solution for f(x)=0.5x*x+2x+c equation: 


Simplifying
f(x) = 0.5x * x + 2x + c

Multiply f * x
fx = 0.5x * x + 2x + c

Multiply x * x
fx = 0.5x2 + 2x + c

Reorder the terms:
fx = c + 2x + 0.5x2

Solving
fx = c + 2x + 0.5x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = cx-1 + 2 + 0.5x

Simplifying
f = cx-1 + 2 + 0.5x

Reorder the terms:
f = 2 + cx-1 + 0.5x

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