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

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


Simplifying
f(3) = 2x2 + -4x

Reorder the terms for easier multiplication:
3f = 2x2 + -4x

Reorder the terms:
3f = -4x + 2x2

Solving
3f = -4x + 2x2

Solving for variable 'f'.

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

Divide each side by '3'.
f = -1.333333333x + 0.6666666667x2

Simplifying
f = -1.333333333x + 0.6666666667x2

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