x^4+34x^2=72

Solution for x^4+34x^2=72 equation:

Simplifying
x4 + 34x2 = 72

Reorder the terms:
34x2 + x4 = 72

Solving
34x2 + x4 = 72

Solving for variable 'x'.

Reorder the terms:
-72 + 34x2 + x4 = 72 + -72

Combine like terms: 72 + -72 = 0
-72 + 34x2 + x4 = 0

Factor a trinomial.
(-36 + -1x2)(2 + -1x2) = 0

Subproblem 1
Set the factor '(-36 + -1x2)' equal to zero and attempt to solve:

Simplifying
-36 + -1x2 = 0

Solving
-36 + -1x2 = 0

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

Add '36' to each side of the equation.
-36 + 36 + -1x2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + -1x2 = 0 + 36
-1x2 = 0 + 36

Combine like terms: 0 + 36 = 36
-1x2 = 36

Divide each side by '-1'.
x2 = -36

Simplifying
x2 = -36

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}