f(x)=9x^3+5x^2+x-10

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Solution for f(x)=9x^3+5x^2+x-10 equation: 


Simplifying
f(x) = 9x3 + 5x2 + x + -10

Multiply f * x
fx = 9x3 + 5x2 + x + -10

Reorder the terms:
fx = -10 + x + 5x2 + 9x3

Solving
fx = -10 + x + 5x2 + 9x3

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -10x-1 + 1 + 5x + 9x2

Simplifying
f = -10x-1 + 1 + 5x + 9x2

Reorder the terms:
f = 1 + -10x-1 + 5x + 9x2

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