=x^4-6x^2+13

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Solution for =x^4-6x^2+13 equation:


Simplifying
0 = x4 + -6x2 + 13

Reorder the terms:
0 = 13 + -6x2 + x4

Solving
0 = 13 + -6x2 + x4

Solving for variable 'x'.

Combine like terms: 0 + -13 = -13
-13 + 6x2 + -1x4 = 13 + -6x2 + x4 + -13 + 6x2 + -1x4

Reorder the terms:
-13 + 6x2 + -1x4 = 13 + -13 + -6x2 + 6x2 + x4 + -1x4

Combine like terms: 13 + -13 = 0
-13 + 6x2 + -1x4 = 0 + -6x2 + 6x2 + x4 + -1x4
-13 + 6x2 + -1x4 = -6x2 + 6x2 + x4 + -1x4

Combine like terms: -6x2 + 6x2 = 0
-13 + 6x2 + -1x4 = 0 + x4 + -1x4
-13 + 6x2 + -1x4 = x4 + -1x4

Combine like terms: x4 + -1x4 = 0
-13 + 6x2 + -1x4 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
13 + -6x2 + x4 = 0

Move the constant term to the right:

Add '-13' to each side of the equation.
13 + -6x2 + -13 + x4 = 0 + -13

Reorder the terms:
13 + -13 + -6x2 + x4 = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -6x2 + x4 = 0 + -13
-6x2 + x4 = 0 + -13

Combine like terms: 0 + -13 = -13
-6x2 + x4 = -13

The x term is -6x2.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x2 + 9 + x4 = -13 + 9

Reorder the terms:
9 + -6x2 + x4 = -13 + 9

Combine like terms: -13 + 9 = -4
9 + -6x2 + x4 = -4

Factor a perfect square on the left side:
(x2 + -3)(x2 + -3) = -4

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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