84+3x(x+1)(x-1)=0

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Solution for 84+3x(x+1)(x-1)=0 equation: 


Simplifying
84 + 3x(x + 1)(x + -1) = 0

Reorder the terms:
84 + 3x(1 + x)(x + -1) = 0

Reorder the terms:
84 + 3x(1 + x)(-1 + x) = 0

Multiply (1 + x) * (-1 + x)
84 + 3x(1(-1 + x) + x(-1 + x)) = 0
84 + 3x((-1 * 1 + x * 1) + x(-1 + x)) = 0
84 + 3x((-1 + 1x) + x(-1 + x)) = 0
84 + 3x(-1 + 1x + (-1 * x + x * x)) = 0
84 + 3x(-1 + 1x + (-1x + x2)) = 0

Combine like terms: 1x + -1x = 0
84 + 3x(-1 + 0 + x2) = 0
84 + 3x(-1 + x2) = 0
84 + (-1 * 3x + x2 * 3x) = 0
84 + (-3x + 3x3) = 0

Solving
84 + -3x + 3x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(28 + -1x + x3) = 0

Ignore the factor 3.

Subproblem 1
Set the factor '(28 + -1x + x3)' equal to zero and attempt to solve:

Simplifying
28 + -1x + x3 = 0

Solving
28 + -1x + x3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.

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