-f(x)=3x^2+4x+9

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Solution for -f(x)=3x^2+4x+9 equation: 


Simplifying
-1f(x) = 3x2 + 4x + 9

Multiply f * x
-1fx = 3x2 + 4x + 9

Reorder the terms:
-1fx = 9 + 4x + 3x2

Solving
-1fx = 9 + 4x + 3x2

Solving for variable 'f'.

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

Divide each side by '-1x'.
f = -9x-1 + -4 + -3x

Simplifying
f = -9x-1 + -4 + -3x

Reorder the terms:
f = -4 + -9x-1 + -3x

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