f(-5)=2x^2-8x+9

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Solution for f(-5)=2x^2-8x+9 equation: 


Simplifying
f(-5) = 2x2 + -8x + 9

Reorder the terms for easier multiplication:
-5f = 2x2 + -8x + 9

Reorder the terms:
-5f = 9 + -8x + 2x2

Solving
-5f = 9 + -8x + 2x2

Solving for variable 'f'.

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

Divide each side by '-5'.
f = -1.8 + 1.6x + -0.4x2

Simplifying
f = -1.8 + 1.6x + -0.4x2

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