x^4-x^2-6=6

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Solution for x^4-x^2-6=6 equation:


Simplifying
x4 + -1x2 + -6 = 6

Reorder the terms:
-6 + -1x2 + x4 = 6

Solving
-6 + -1x2 + x4 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -6 + -1x2 + x4 = 6 + -6

Combine like terms: -6 + -6 = -12
-12 + -1x2 + x4 = 6 + -6

Combine like terms: 6 + -6 = 0
-12 + -1x2 + x4 = 0

Factor a trinomial.
(-3 + -1x2)(4 + -1x2) = 0

Factor a difference between two squares.
(-3 + -1x2)((2 + x)(2 + -1x)) = 0

Subproblem 1

Set the factor '(-3 + -1x2)' equal to zero and attempt to solve: Simplifying -3 + -1x2 = 0 Solving -3 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x2 = 0 + 3 -1x2 = 0 + 3 Combine like terms: 0 + 3 = 3 -1x2 = 3 Divide each side by '-1'. x2 = -3 Simplifying x2 = -3 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 '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 3

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-2, 2}

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