f(-1)=(-1)2-1

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Solution for f(-1)=(-1)2-1 equation: 


Simplifying
f(-1) = (-1) * 2 + -1

Reorder the terms for easier multiplication:
-1f = (-1) * 2 + -1

Multiply -1 * 2
-1f = -2 + -1

Combine like terms: -2 + -1 = -3
-1f = -3

Solving
-1f = -3

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

Simplifying
f = 3

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