9x^4-6x^2+1=4

Solution for 9x^4-6x^2+1=4 equation:

Simplifying
9x4 + -6x2 + 1 = 4

Reorder the terms:
1 + -6x2 + 9x4 = 4

Solving
1 + -6x2 + 9x4 = 4

Solving for variable 'x'.

Reorder the terms:
1 + -4 + -6x2 + 9x4 = 4 + -4

Combine like terms: 1 + -4 = -3
-3 + -6x2 + 9x4 = 4 + -4

Combine like terms: 4 + -4 = 0
-3 + -6x2 + 9x4 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-1 + -2x2 + 3x4) = 0

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

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

Ignore the factor 3.
Subproblem 1
Set the factor '(-1 + -3x2)' equal to zero and attempt to solve:

Simplifying
-1 + -3x2 = 0

Solving
-1 + -3x2 = 0

Move all terms containing x to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + -3x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3x2 = 0 + 1
-3x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-3x2 = 1

Divide each side by '-3'.
x2 = -0.3333333333

Simplifying
x2 = -0.3333333333

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 '(1 + x)' equal to zero and attempt to solve:

Simplifying
1 + x = 0

Solving
1 + x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + x = 0 + -1
x = 0 + -1

Combine like terms: 0 + -1 = -1
x = -1

Simplifying
x = -1
Subproblem 3
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-1, 1}