X^3-2x^2-4x=-8

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Solution for X^3-2x^2-4x=-8 equation: 


Simplifying
X3 + -2x2 + -4x = -8

Reorder the terms:
X3 + -4x + -2x2 = -8

Solving
X3 + -4x + -2x2 = -8

Solving for variable 'X'.

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

Add '4x' to each side of the equation.
X3 + -4x + 4x + -2x2 = -8 + 4x

Combine like terms: -4x + 4x = 0
X3 + 0 + -2x2 = -8 + 4x
X3 + -2x2 = -8 + 4x

Add '2x2' to each side of the equation.
X3 + -2x2 + 2x2 = -8 + 4x + 2x2

Combine like terms: -2x2 + 2x2 = 0
X3 + 0 = -8 + 4x + 2x2
X3 = -8 + 4x + 2x2

Simplifying
X3 = -8 + 4x + 2x2

Reorder the terms:
8 + X3 + -4x + -2x2 = -8 + 4x + 2x2 + 8 + -4x + -2x2

Reorder the terms:
8 + X3 + -4x + -2x2 = -8 + 8 + 4x + -4x + 2x2 + -2x2

Combine like terms: -8 + 8 = 0
8 + X3 + -4x + -2x2 = 0 + 4x + -4x + 2x2 + -2x2
8 + X3 + -4x + -2x2 = 4x + -4x + 2x2 + -2x2

Combine like terms: 4x + -4x = 0
8 + X3 + -4x + -2x2 = 0 + 2x2 + -2x2
8 + X3 + -4x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
8 + X3 + -4x + -2x2 = 0

The solution to this equation could not be determined.

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