3x^4+2x^2-4=-3

Solution for 3x^4+2x^2-4=-3 equation:

Simplifying
3x4 + 2x2 + -4 = -3

Reorder the terms:
-4 + 2x2 + 3x4 = -3

Solving
-4 + 2x2 + 3x4 = -3

Solving for variable 'x'.

Reorder the terms:
-4 + 3 + 2x2 + 3x4 = -3 + 3

Combine like terms: -4 + 3 = -1
-1 + 2x2 + 3x4 = -3 + 3

Combine like terms: -3 + 3 = 0
-1 + 2x2 + 3x4 = 0

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

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

Simplifying
-1 + -1x2 = 0

Solving
-1 + -1x2 = 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 + -1x2 = 0 + 1

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

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

Divide each side by '-1'.
x2 = -1

Simplifying
x2 = -1

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 + -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

Take the square root of each side:
x = {-0.577350269, 0.577350269}
Solution
x = {-0.577350269, 0.577350269}