x^4+4x^2=12

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Solution for x^4+4x^2=12 equation:


Simplifying
x4 + 4x2 = 12

Reorder the terms:
4x2 + x4 = 12

Solving
4x2 + x4 = 12

Solving for variable 'x'.

Reorder the terms:
-12 + 4x2 + x4 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + 4x2 + x4 = 0

Factor a trinomial.
(-6 + -1x2)(2 + -1x2) = 0

Subproblem 1

Set the factor '(-6 + -1x2)' equal to zero and attempt to solve: Simplifying -6 + -1x2 = 0 Solving -6 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x2 = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x2 = 0 + 6 -1x2 = 0 + 6 Combine like terms: 0 + 6 = 6 -1x2 = 6 Divide each side by '-1'. x2 = -6 Simplifying x2 = -6 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 + -1x2)' equal to zero and attempt to solve: Simplifying 2 + -1x2 = 0 Solving 2 + -1x2 = 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 + -1x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x2 = 0 + -2 -1x2 = 0 + -2 Combine like terms: 0 + -2 = -2 -1x2 = -2 Divide each side by '-1'. x2 = 2 Simplifying x2 = 2 Take the square root of each side: x = {-1.414213562, 1.414213562}

Solution

x = {-1.414213562, 1.414213562}

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