f(x)=4x^5-5x^4

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Solution for f(x)=4x^5-5x^4 equation: 


Simplifying
f(x) = 4x5 + -5x4

Multiply f * x
fx = 4x5 + -5x4

Reorder the terms:
fx = -5x4 + 4x5

Solving
fx = -5x4 + 4x5

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -5x3 + 4x4

Simplifying
f = -5x3 + 4x4

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