2x^4+18x=0

Solution for 2x^4+18x=0 equation:

Simplifying
2x4 + 18x = 0

Reorder the terms:
18x + 2x4 = 0

Solving
18x + 2x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x'.
2x(9 + x3) = 0

Ignore the factor 2.
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 '(9 + x3)' equal to zero and attempt to solve:

Simplifying
9 + x3 = 0

Solving
9 + x3 = 0

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

Add '-9' to each side of the equation.
9 + -9 + x3 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + x3 = 0 + -9
x3 = 0 + -9

Combine like terms: 0 + -9 = -9
x3 = -9

Simplifying
x3 = -9

The solution to this equation could not be determined.

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