3x^4-22x^2-45=0

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Solution for 3x^4-22x^2-45=0 equation:


Simplifying
3x4 + -22x2 + -45 = 0

Reorder the terms:
-45 + -22x2 + 3x4 = 0

Solving
-45 + -22x2 + 3x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -3x2)(9 + -1x2) = 0

Factor a difference between two squares.
(-5 + -3x2)((3 + x)(3 + -1x)) = 0

Subproblem 1

Set the factor '(-5 + -3x2)' equal to zero and attempt to solve: Simplifying -5 + -3x2 = 0 Solving -5 + -3x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -3x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3x2 = 0 + 5 -3x2 = 0 + 5 Combine like terms: 0 + 5 = 5 -3x2 = 5 Divide each side by '-3'. x2 = -1.666666667 Simplifying x2 = -1.666666667 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 '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 3

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-3, 3}

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