f(x)=x^4-6x^3+8x^2+6x-9

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Solution for f(x)=x^4-6x^3+8x^2+6x-9 equation: 


Simplifying
f(x) = x4 + -6x3 + 8x2 + 6x + -9

Multiply f * x
fx = x4 + -6x3 + 8x2 + 6x + -9

Reorder the terms:
fx = -9 + 6x + 8x2 + -6x3 + x4

Solving
fx = -9 + 6x + 8x2 + -6x3 + x4

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 + 6 + 8x + -6x2 + x3

Simplifying
f = -9x-1 + 6 + 8x + -6x2 + x3

Reorder the terms:
f = 6 + -9x-1 + 8x + -6x2 + x3

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