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

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


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

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

Multiply x * x
-2f = x2 + x + 1

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

Solving
-2f = 1 + x + 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 = -0.5 + -0.5x + -0.5x2

Simplifying
f = -0.5 + -0.5x + -0.5x2

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