15x^4-15x^2+4=0

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Solution for 15x^4-15x^2+4=0 equation:


Simplifying
15x4 + -15x2 + 4 = 0

Reorder the terms:
4 + -15x2 + 15x4 = 0

Solving
4 + -15x2 + 15x4 = 0

Solving for variable 'x'.

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

Divide each side by '15'.
0.2666666667 + -1x2 + x4 = 0

Move the constant term to the right:

Add '-0.2666666667' to each side of the equation.
0.2666666667 + -1x2 + -0.2666666667 + x4 = 0 + -0.2666666667

Reorder the terms:
0.2666666667 + -0.2666666667 + -1x2 + x4 = 0 + -0.2666666667

Combine like terms: 0.2666666667 + -0.2666666667 = 0.0000000000
0.0000000000 + -1x2 + x4 = 0 + -0.2666666667
-1x2 + x4 = 0 + -0.2666666667

Combine like terms: 0 + -0.2666666667 = -0.2666666667
-1x2 + x4 = -0.2666666667

The x term is -1x2.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x2 + 0.25 + x4 = -0.2666666667 + 0.25

Reorder the terms:
0.25 + -1x2 + x4 = -0.2666666667 + 0.25

Combine like terms: -0.2666666667 + 0.25 = -0.0166666667
0.25 + -1x2 + x4 = -0.0166666667

Factor a perfect square on the left side:
(x2 + -0.5)(x2 + -0.5) = -0.0166666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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