12=x(x-1)(x+4)

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Solution for 12=x(x-1)(x+4) equation: 


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

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

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

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

Combine like terms: -1x + 4x = 3x
12 = x(-4 + 3x + x2)
12 = (-4 * x + 3x * x + x2 * x)
12 = (-4x + 3x2 + x3)

Solving
12 = -4x + 3x2 + x3

Solving for variable 'x'.

Reorder the terms:
12 + 4x + -3x2 + -1x3 = -4x + 4x + 3x2 + -3x2 + x3 + -1x3

Combine like terms: -4x + 4x = 0
12 + 4x + -3x2 + -1x3 = 0 + 3x2 + -3x2 + x3 + -1x3
12 + 4x + -3x2 + -1x3 = 3x2 + -3x2 + x3 + -1x3

Combine like terms: 3x2 + -3x2 = 0
12 + 4x + -3x2 + -1x3 = 0 + x3 + -1x3
12 + 4x + -3x2 + -1x3 = x3 + -1x3

Combine like terms: x3 + -1x3 = 0
12 + 4x + -3x2 + -1x3 = 0

The solution to this equation could not be determined.

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