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

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


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

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

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

Solving
fx = -5 + -1px + 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 = -5x-1 + -1p + 2x

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

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

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