f(x)=15x^4+20x^3-4x-5

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Solution for f(x)=15x^4+20x^3-4x-5 equation: 


Simplifying
f(x) = 15x4 + 20x3 + -4x + -5

Multiply f * x
fx = 15x4 + 20x3 + -4x + -5

Reorder the terms:
fx = -5 + -4x + 20x3 + 15x4

Solving
fx = -5 + -4x + 20x3 + 15x4

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -5x-1 + -4 + 20x2 + 15x3

Simplifying
f = -5x-1 + -4 + 20x2 + 15x3

Reorder the terms:
f = -4 + -5x-1 + 20x2 + 15x3

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