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

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


Simplifying
f(-2) = 2x2 + (-2 + -2)

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

Combine like terms: -2 + -2 = -4
-2f = 2x2 + (-4)
-2f = 2x2 + -4

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

Solving
-2f = -4 + 2x2

Solving for variable 'f'.

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

Divide each side by '-2'.
f = 2 + -1x2

Simplifying
f = 2 + -1x2

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