3x^3u+5x^2u-4xu-4u=

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Solution for 3x^3u+5x^2u-4xu-4u= equation: 


Simplifying
3x3u + 5x2u + -4xu + -4u = 0

Reorder the terms:
-4u + -4ux + 5ux2 + 3ux3 = 0

Solving
-4u + -4ux + 5ux2 + 3ux3 = 0

Solving for variable 'u'.

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

Factor out the Greatest Common Factor (GCF), 'u'.
u(-4 + -4x + 5x2 + 3x3) = 0


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

Simplifying
u = 0

Solving
u = 0

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

Simplifying
u = 0

Subproblem 2
Set the factor '(-4 + -4x + 5x2 + 3x3)' equal to zero and attempt to solve:

Simplifying
-4 + -4x + 5x2 + 3x3 = 0

Solving
-4 + -4x + 5x2 + 3x3 = 0

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

Add '4' to each side of the equation.
-4 + -4x + 5x2 + 4 + 3x3 = 0 + 4

Reorder the terms:
-4 + 4 + -4x + 5x2 + 3x3 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -4x + 5x2 + 3x3 = 0 + 4
-4x + 5x2 + 3x3 = 0 + 4

Combine like terms: 0 + 4 = 4
-4x + 5x2 + 3x3 = 4

Add '4x' to each side of the equation.
-4x + 5x2 + 4x + 3x3 = 4 + 4x

Reorder the terms:
-4x + 4x + 5x2 + 3x3 = 4 + 4x

Combine like terms: -4x + 4x = 0
0 + 5x2 + 3x3 = 4 + 4x
5x2 + 3x3 = 4 + 4x

Add '-5x2' to each side of the equation.
5x2 + -5x2 + 3x3 = 4 + 4x + -5x2

Combine like terms: 5x2 + -5x2 = 0
0 + 3x3 = 4 + 4x + -5x2
3x3 = 4 + 4x + -5x2

Add '-3x3' to each side of the equation.
3x3 + -3x3 = 4 + 4x + -5x2 + -3x3

Combine like terms: 3x3 + -3x3 = 0
0 = 4 + 4x + -5x2 + -3x3

Simplifying
0 = 4 + 4x + -5x2 + -3x3

The solution to this equation could not be determined.

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

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