f(x)=x^5-7x^2+9x-11x^7+4x^3

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Solution for f(x)=x^5-7x^2+9x-11x^7+4x^3 equation: 


Simplifying
f(x) = x5 + -7x2 + 9x + -11x7 + 4x3

Multiply f * x
fx = x5 + -7x2 + 9x + -11x7 + 4x3

Reorder the terms:
fx = 9x + -7x2 + 4x3 + x5 + -11x7

Solving
fx = 9x + -7x2 + 4x3 + x5 + -11x7

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 9 + -7x + 4x2 + x4 + -11x6

Simplifying
f = 9 + -7x + 4x2 + x4 + -11x6

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