17.89x^4+25.6x^2+9.13=0

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Solution for 17.89x^4+25.6x^2+9.13=0 equation:


Simplifying
17.89x4 + 25.6x2 + 9.13 = 0

Reorder the terms:
9.13 + 25.6x2 + 17.89x4 = 0

Solving
9.13 + 25.6x2 + 17.89x4 = 0

Solving for variable 'x'.

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

Divide each side by '17.89'.
0.5103409726 + 1.430967021x2 + x4 = 0

Move the constant term to the right:

Add '-0.5103409726' to each side of the equation.
0.5103409726 + 1.430967021x2 + -0.5103409726 + x4 = 0 + -0.5103409726

Reorder the terms:
0.5103409726 + -0.5103409726 + 1.430967021x2 + x4 = 0 + -0.5103409726

Combine like terms: 0.5103409726 + -0.5103409726 = 0.0000000000
0.0000000000 + 1.430967021x2 + x4 = 0 + -0.5103409726
1.430967021x2 + x4 = 0 + -0.5103409726

Combine like terms: 0 + -0.5103409726 = -0.5103409726
1.430967021x2 + x4 = -0.5103409726

The x term is 1.430967021x2.  Take half its coefficient (0.7154835105).
Square it (0.5119166538) and add it to both sides.

Add '0.5119166538' to each side of the equation.
1.430967021x2 + 0.5119166538 + x4 = -0.5103409726 + 0.5119166538

Reorder the terms:
0.5119166538 + 1.430967021x2 + x4 = -0.5103409726 + 0.5119166538

Combine like terms: -0.5103409726 + 0.5119166538 = 0.0015756812
0.5119166538 + 1.430967021x2 + x4 = 0.0015756812

Factor a perfect square on the left side:
(x2 + 0.7154835105)(x2 + 0.7154835105) = 0.0015756812

Calculate the square root of the right side: 0.039694851

Break this problem into two subproblems by setting 
(x2 + 0.7154835105) equal to 0.039694851 and -0.039694851.

Subproblem 1

x2 + 0.7154835105 = 0.039694851 Simplifying x2 + 0.7154835105 = 0.039694851 Reorder the terms: 0.7154835105 + x2 = 0.039694851 Solving 0.7154835105 + x2 = 0.039694851 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7154835105' to each side of the equation. 0.7154835105 + -0.7154835105 + x2 = 0.039694851 + -0.7154835105 Combine like terms: 0.7154835105 + -0.7154835105 = 0.0000000000 0.0000000000 + x2 = 0.039694851 + -0.7154835105 x2 = 0.039694851 + -0.7154835105 Combine like terms: 0.039694851 + -0.7154835105 = -0.6757886595 x2 = -0.6757886595 Simplifying x2 = -0.6757886595 Reorder the terms: 0.6757886595 + x2 = -0.6757886595 + 0.6757886595 Combine like terms: -0.6757886595 + 0.6757886595 = 0.0000000000 0.6757886595 + x2 = 0.0000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.

Subproblem 2

x2 + 0.7154835105 = -0.039694851 Simplifying x2 + 0.7154835105 = -0.039694851 Reorder the terms: 0.7154835105 + x2 = -0.039694851 Solving 0.7154835105 + x2 = -0.039694851 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7154835105' to each side of the equation. 0.7154835105 + -0.7154835105 + x2 = -0.039694851 + -0.7154835105 Combine like terms: 0.7154835105 + -0.7154835105 = 0.0000000000 0.0000000000 + x2 = -0.039694851 + -0.7154835105 x2 = -0.039694851 + -0.7154835105 Combine like terms: -0.039694851 + -0.7154835105 = -0.7551783615 x2 = -0.7551783615 Simplifying x2 = -0.7551783615 Reorder the terms: 0.7551783615 + x2 = -0.7551783615 + 0.7551783615 Combine like terms: -0.7551783615 + 0.7551783615 = 0.0000000000 0.7551783615 + x2 = 0.0000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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