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

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


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

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

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

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

Reorder the terms:
(-1 + x)(2 + x)(-2 + 4x + x2) = 0

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

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

Multiply (-2 + 1x + x2) * (-2 + 4x + x2)
(-2(-2 + 4x + x2) + 1x * (-2 + 4x + x2) + x2(-2 + 4x + x2)) = 0
((-2 * -2 + 4x * -2 + x2 * -2) + 1x * (-2 + 4x + x2) + x2(-2 + 4x + x2)) = 0
((4 + -8x + -2x2) + 1x * (-2 + 4x + x2) + x2(-2 + 4x + x2)) = 0
(4 + -8x + -2x2 + (-2 * 1x + 4x * 1x + x2 * 1x) + x2(-2 + 4x + x2)) = 0
(4 + -8x + -2x2 + (-2x + 4x2 + 1x3) + x2(-2 + 4x + x2)) = 0
(4 + -8x + -2x2 + -2x + 4x2 + 1x3 + (-2 * x2 + 4x * x2 + x2 * x2)) = 0
(4 + -8x + -2x2 + -2x + 4x2 + 1x3 + (-2x2 + 4x3 + x4)) = 0

Reorder the terms:
(4 + -8x + -2x + -2x2 + 4x2 + -2x2 + 1x3 + 4x3 + x4) = 0

Combine like terms: -8x + -2x = -10x
(4 + -10x + -2x2 + 4x2 + -2x2 + 1x3 + 4x3 + x4) = 0

Combine like terms: -2x2 + 4x2 = 2x2
(4 + -10x + 2x2 + -2x2 + 1x3 + 4x3 + x4) = 0

Combine like terms: 2x2 + -2x2 = 0
(4 + -10x + 0 + 1x3 + 4x3 + x4) = 0
(4 + -10x + 1x3 + 4x3 + x4) = 0

Combine like terms: 1x3 + 4x3 = 5x3
(4 + -10x + 5x3 + x4) = 0

Solving
4 + -10x + 5x3 + x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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