-f(x)=2x^2+2x+5

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Solution for -f(x)=2x^2+2x+5 equation: 


Simplifying
-1f(x) = 2x2 + 2x + 5

Multiply f * x
-1fx = 2x2 + 2x + 5

Reorder the terms:
-1fx = 5 + 2x + 2x2

Solving
-1fx = 5 + 2x + 2x2

Solving for variable 'f'.

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

Divide each side by '-1x'.
f = -5x-1 + -2 + -2x

Simplifying
f = -5x-1 + -2 + -2x

Reorder the terms:
f = -2 + -5x-1 + -2x

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