x^3+10x+21x=0

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Solution for x^3+10x+21x=0 equation: 


Simplifying
x3 + 10x + 21x = 0

Reorder the terms:
10x + 21x + x3 = 0

Combine like terms: 10x + 21x = 31x
31x + x3 = 0

Solving
31x + x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(31 + x2) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

Subproblem 2
Set the factor '(31 + x2)' equal to zero and attempt to solve:

Simplifying
31 + x2 = 0

Solving
31 + x2 = 0

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

Add '-31' to each side of the equation.
31 + -31 + x2 = 0 + -31

Combine like terms: 31 + -31 = 0
0 + x2 = 0 + -31
x2 = 0 + -31

Combine like terms: 0 + -31 = -31
x2 = -31

Simplifying
x2 = -31

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
x = {0}

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