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

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


Simplifying
f(x) = x4 + 2x3 + -9x2 + -2x + 8

Multiply f * x
fx = x4 + 2x3 + -9x2 + -2x + 8

Reorder the terms:
fx = 8 + -2x + -9x2 + 2x3 + x4

Solving
fx = 8 + -2x + -9x2 + 2x3 + 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 = 8x-1 + -2 + -9x + 2x2 + x3

Simplifying
f = 8x-1 + -2 + -9x + 2x2 + x3

Reorder the terms:
f = -2 + 8x-1 + -9x + 2x2 + x3

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