(x-1)(x-2)(x+4)=0

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Solution for (x-1)(x-2)(x+4)=0 equation: 


Simplifying
(x + -1)(x + -2)(x + 4) = 0

Reorder the terms:
(-1 + x)(x + -2)(x + 4) = 0

Reorder the terms:
(-1 + x)(-2 + x)(x + 4) = 0

Reorder the terms:
(-1 + x)(-2 + x)(4 + x) = 0

Multiply (-1 + x) * (-2 + x)
(-1(-2 + x) + x(-2 + x))(4 + x) = 0
((-2 * -1 + x * -1) + x(-2 + x))(4 + x) = 0
((2 + -1x) + x(-2 + x))(4 + x) = 0
(2 + -1x + (-2 * x + x * x))(4 + x) = 0
(2 + -1x + (-2x + x2))(4 + x) = 0

Combine like terms: -1x + -2x = -3x
(2 + -3x + x2)(4 + x) = 0

Multiply (2 + -3x + x2) * (4 + x)
(2(4 + x) + -3x * (4 + x) + x2(4 + x)) = 0
((4 * 2 + x * 2) + -3x * (4 + x) + x2(4 + x)) = 0
((8 + 2x) + -3x * (4 + x) + x2(4 + x)) = 0
(8 + 2x + (4 * -3x + x * -3x) + x2(4 + x)) = 0
(8 + 2x + (-12x + -3x2) + x2(4 + x)) = 0
(8 + 2x + -12x + -3x2 + (4 * x2 + x * x2)) = 0
(8 + 2x + -12x + -3x2 + (4x2 + x3)) = 0

Combine like terms: 2x + -12x = -10x
(8 + -10x + -3x2 + 4x2 + x3) = 0

Combine like terms: -3x2 + 4x2 = 1x2
(8 + -10x + 1x2 + x3) = 0

Solving
8 + -10x + 1x2 + x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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