-x^4-5x^4+4x^2+20x=0

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Solution for -x^4-5x^4+4x^2+20x=0 equation: 


Simplifying
-1x4 + -5x4 + 4x2 + 20x = 0

Reorder the terms:
20x + 4x2 + -1x4 + -5x4 = 0

Combine like terms: -1x4 + -5x4 = -6x4
20x + 4x2 + -6x4 = 0

Solving
20x + 4x2 + -6x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x'.
2x(10 + 2x + -3x3) = 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 '(10 + 2x + -3x3)' equal to zero and attempt to solve:

Simplifying
10 + 2x + -3x3 = 0

Solving
10 + 2x + -3x3 = 0

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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