16x^4+23x^2+15=0

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Solution for 16x^4+23x^2+15=0 equation:


Simplifying
16x4 + 23x2 + 15 = 0

Reorder the terms:
15 + 23x2 + 16x4 = 0

Solving
15 + 23x2 + 16x4 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
0.9375 + 1.4375x2 + x4 = 0

Move the constant term to the right:

Add '-0.9375' to each side of the equation.
0.9375 + 1.4375x2 + -0.9375 + x4 = 0 + -0.9375

Reorder the terms:
0.9375 + -0.9375 + 1.4375x2 + x4 = 0 + -0.9375

Combine like terms: 0.9375 + -0.9375 = 0.0000
0.0000 + 1.4375x2 + x4 = 0 + -0.9375
1.4375x2 + x4 = 0 + -0.9375

Combine like terms: 0 + -0.9375 = -0.9375
1.4375x2 + x4 = -0.9375

The x term is 1.4375x2.  Take half its coefficient (0.71875).
Square it (0.5166015625) and add it to both sides.

Add '0.5166015625' to each side of the equation.
1.4375x2 + 0.5166015625 + x4 = -0.9375 + 0.5166015625

Reorder the terms:
0.5166015625 + 1.4375x2 + x4 = -0.9375 + 0.5166015625

Combine like terms: -0.9375 + 0.5166015625 = -0.4208984375
0.5166015625 + 1.4375x2 + x4 = -0.4208984375

Factor a perfect square on the left side:
(x2 + 0.71875)(x2 + 0.71875) = -0.4208984375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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