9x^4+18x^2+8=0

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Solution for 9x^4+18x^2+8=0 equation:


Simplifying
9x4 + 18x2 + 8 = 0

Reorder the terms:
8 + 18x2 + 9x4 = 0

Solving
8 + 18x2 + 9x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(4 + 3x2)(2 + 3x2) = 0

Subproblem 1

Set the factor '(4 + 3x2)' equal to zero and attempt to solve: Simplifying 4 + 3x2 = 0 Solving 4 + 3x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3x2 = 0 + -4 3x2 = 0 + -4 Combine like terms: 0 + -4 = -4 3x2 = -4 Divide each side by '3'. x2 = -1.333333333 Simplifying x2 = -1.333333333 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 + 3x2)' equal to zero and attempt to solve: Simplifying 2 + 3x2 = 0 Solving 2 + 3x2 = 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 + 3x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3x2 = 0 + -2 3x2 = 0 + -2 Combine like terms: 0 + -2 = -2 3x2 = -2 Divide each side by '3'. x2 = -0.6666666667 Simplifying x2 = -0.6666666667 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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