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

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


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

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

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

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

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 + x2

Simplifying
f = -0.5 + -0.5x + x2

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