f(-2)=x^2-8

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


Simplifying
f(-2) = x2 + -8

Reorder the terms for easier multiplication:
-2f = x2 + -8

Reorder the terms:
-2f = -8 + x2

Solving
-2f = -8 + x2

Solving for variable 'f'.

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

Divide each side by '-2'.
f = 4 + -0.5x2

Simplifying
f = 4 + -0.5x2

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