f(3)=-15x^2+15-x

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Solution for f(3)=-15x^2+15-x equation: 


Simplifying
f(3) = -15x2 + 15 + -1x

Reorder the terms for easier multiplication:
3f = -15x2 + 15 + -1x

Reorder the terms:
3f = 15 + -1x + -15x2

Solving
3f = 15 + -1x + -15x2

Solving for variable 'f'.

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

Divide each side by '3'.
f = 5 + -0.3333333333x + -5x2

Simplifying
f = 5 + -0.3333333333x + -5x2

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