f(x)=x(x-1)(x-4)

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Solution for f(x)=x(x-1)(x-4) equation:


Simplifying
f(x) = x(x + -1)(x + -4)

Multiply f * x
fx = x(x + -1)(x + -4)

Reorder the terms:
fx = x(-1 + x)(x + -4)

Reorder the terms:
fx = x(-1 + x)(-4 + x)

Multiply (-1 + x) * (-4 + x)
fx = x(-1(-4 + x) + x(-4 + x))
fx = x((-4 * -1 + x * -1) + x(-4 + x))
fx = x((4 + -1x) + x(-4 + x))
fx = x(4 + -1x + (-4 * x + x * x))
fx = x(4 + -1x + (-4x + x2))

Combine like terms: -1x + -4x = -5x
fx = x(4 + -5x + x2)
fx = (4 * x + -5x * x + x2 * x)
fx = (4x + -5x2 + x3)

Solving
fx = 4x + -5x2 + x3

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 4 + -5x + x2

Simplifying
f = 4 + -5x + x2

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