f(x)=2x^2-1

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


Simplifying
f(x) = 2x2 + -1

Multiply f * x
fx = 2x2 + -1

Reorder the terms:
fx = -1 + 2x2

Solving
fx = -1 + 2x2

Solving for variable 'f'.

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

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

Simplifying
f = -1x-1 + 2x

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