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

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


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

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

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

Solving
fx = -9 + 3x + x2

Solving for variable 'f'.

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

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

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

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

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