f(-1)=-x^2+3

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Solution for f(-1)=-x^2+3 equation: 


Simplifying
f(-1) = -1x2 + 3

Reorder the terms for easier multiplication:
-1f = -1x2 + 3

Reorder the terms:
-1f = 3 + -1x2

Solving
-1f = 3 + -1x2

Solving for variable 'f'.

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

Divide each side by '-1'.
f = -3 + x2

Simplifying
f = -3 + x2

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