f(x)=3u^3+5u^2-9u-15

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Solution for f(x)=3u^3+5u^2-9u-15 equation: 


Simplifying
f(x) = 3u3 + 5u2 + -9u + -15

Multiply f * x
fx = 3u3 + 5u2 + -9u + -15

Reorder the terms:
fx = -15 + -9u + 5u2 + 3u3

Solving
fx = -15 + -9u + 5u2 + 3u3

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -15x-1 + -9ux-1 + 5u2x-1 + 3u3x-1

Simplifying
f = -15x-1 + -9ux-1 + 5u2x-1 + 3u3x-1

Reorder the terms:
f = -9ux-1 + 5u2x-1 + 3u3x-1 + -15x-1

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