f(x)=-5x^2+4x+9

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Solution for f(x)=-5x^2+4x+9 equation: 


Simplifying
f(x) = -5x2 + 4x + 9

Multiply f * x
fx = -5x2 + 4x + 9

Reorder the terms:
fx = 9 + 4x + -5x2

Solving
fx = 9 + 4x + -5x2

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 + 4 + -5x

Simplifying
f = 9x-1 + 4 + -5x

Reorder the terms:
f = 4 + 9x-1 + -5x

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