fx(x)=-2x^2+4x+5

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Solution for fx(x)=-2x^2+4x+5 equation: 


Simplifying
fx(x) = -2x2 + 4x + 5

Multiply fx * x
fx2 = -2x2 + 4x + 5

Reorder the terms:
fx2 = 5 + 4x + -2x2

Solving
fx2 = 5 + 4x + -2x2

Solving for variable 'f'.

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

Divide each side by 'x2'.
f = 5x-2 + 4x-1 + -2

Simplifying
f = 5x-2 + 4x-1 + -2

Reorder the terms:
f = -2 + 5x-2 + 4x-1

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