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

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


Simplifying
f(-2) = 4x2 + -1x

Reorder the terms for easier multiplication:
-2f = 4x2 + -1x

Reorder the terms:
-2f = -1x + 4x2

Solving
-2f = -1x + 4x2

Solving for variable 'f'.

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

Divide each side by '-2'.
f = 0.5x + -2x2

Simplifying
f = 0.5x + -2x2

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