120x^8+138x^4y^4-126y^8=

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Solution for 120x^8+138x^4y^4-126y^8= equation: 


Simplifying
120x8 + 138x4y4 + -126y8 = 0

Reorder the terms:
138x4y4 + 120x8 + -126y8 = 0

Solving
138x4y4 + 120x8 + -126y8 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6'.
6(23x4y4 + 20x8 + -21y8) = 0

Factor a trinomial.
6((5x4 + -3y4)(4x4 + 7y4)) = 0

Ignore the factor 6.

Subproblem 1
Set the factor '(5x4 + -3y4)' equal to zero and attempt to solve:

Simplifying
5x4 + -3y4 = 0

Solving
5x4 + -3y4 = 0

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

Add '3y4' to each side of the equation.
5x4 + -3y4 + 3y4 = 0 + 3y4

Combine like terms: -3y4 + 3y4 = 0
5x4 + 0 = 0 + 3y4
5x4 = 0 + 3y4
Remove the zero:
5x4 = 3y4

Divide each side by '5'.
x4 = 0.6y4

Simplifying
x4 = 0.6y4

The solution to this equation could not be determined.

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

Subproblem 2
Set the factor '(4x4 + 7y4)' equal to zero and attempt to solve:

Simplifying
4x4 + 7y4 = 0

Solving
4x4 + 7y4 = 0

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

Add '-7y4' to each side of the equation.
4x4 + 7y4 + -7y4 = 0 + -7y4

Combine like terms: 7y4 + -7y4 = 0
4x4 + 0 = 0 + -7y4
4x4 = 0 + -7y4
Remove the zero:
4x4 = -7y4

Divide each side by '4'.
x4 = -1.75y4

Simplifying
x4 = -1.75y4

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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