x^8+x^4-240=0

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Solution for x^8+x^4-240=0 equation:


Simplifying
x8 + x4 + -240 = 0

Reorder the terms:
-240 + x4 + x8 = 0

Solving
-240 + x4 + x8 = 0

Solving for variable 'x'.

Factor a trinomial.
(-16 + -1x4)(15 + -1x4) = 0

Subproblem 1

Set the factor '(-16 + -1x4)' equal to zero and attempt to solve: Simplifying -16 + -1x4 = 0 Solving -16 + -1x4 = 0 Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + -1x4 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -1x4 = 0 + 16 -1x4 = 0 + 16 Combine like terms: 0 + 16 = 16 -1x4 = 16 Divide each side by '-1'. x4 = -16 Simplifying x4 = -16 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 '(15 + -1x4)' equal to zero and attempt to solve: Simplifying 15 + -1x4 = 0 Solving 15 + -1x4 = 0 Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -1x4 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -1x4 = 0 + -15 -1x4 = 0 + -15 Combine like terms: 0 + -15 = -15 -1x4 = -15 Divide each side by '-1'. x4 = 15 Simplifying x4 = 15 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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