15x^4+15x^2+15=233

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Solution for 15x^4+15x^2+15=233 equation:


Simplifying
15x4 + 15x2 + 15 = 233

Reorder the terms:
15 + 15x2 + 15x4 = 233

Solving
15 + 15x2 + 15x4 = 233

Solving for variable 'x'.

Reorder the terms:
15 + -233 + 15x2 + 15x4 = 233 + -233

Combine like terms: 15 + -233 = -218
-218 + 15x2 + 15x4 = 233 + -233

Combine like terms: 233 + -233 = 0
-218 + 15x2 + 15x4 = 0

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

Divide each side by '15'.
-14.53333333 + x2 + x4 = 0

Move the constant term to the right:

Add '14.53333333' to each side of the equation.
-14.53333333 + x2 + 14.53333333 + x4 = 0 + 14.53333333

Reorder the terms:
-14.53333333 + 14.53333333 + x2 + x4 = 0 + 14.53333333

Combine like terms: -14.53333333 + 14.53333333 = 0.00000000
0.00000000 + x2 + x4 = 0 + 14.53333333
x2 + x4 = 0 + 14.53333333

Combine like terms: 0 + 14.53333333 = 14.53333333
x2 + x4 = 14.53333333

The x term is x2.  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.
 + 0.25 + x4 = 14.53333333 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x4 = 14.53333333 + 0.25

Combine like terms: 14.53333333 + 0.25 = 14.78333333
1.25 + x4 = 14.78333333

Factor a perfect square on the left side:
(x2 + 0.5)(x2 + 0.5) = 14.78333333

Calculate the square root of the right side: 3.844910055

Break this problem into two subproblems by setting 
(x2 + 0.5) equal to 3.844910055 and -3.844910055.

Subproblem 1

x2 + 0.5 = 3.844910055 Simplifying x2 + 0.5 = 3.844910055 Reorder the terms: 0.5 + x2 = 3.844910055 Solving 0.5 + x2 = 3.844910055 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = 3.844910055 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = 3.844910055 + -0.5 x2 = 3.844910055 + -0.5 Combine like terms: 3.844910055 + -0.5 = 3.344910055 x2 = 3.344910055 Simplifying x2 = 3.344910055 Take the square root of each side: x = {-1.828909526, 1.828909526}

Subproblem 2

x2 + 0.5 = -3.844910055 Simplifying x2 + 0.5 = -3.844910055 Reorder the terms: 0.5 + x2 = -3.844910055 Solving 0.5 + x2 = -3.844910055 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = -3.844910055 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = -3.844910055 + -0.5 x2 = -3.844910055 + -0.5 Combine like terms: -3.844910055 + -0.5 = -4.344910055 x2 = -4.344910055 Simplifying x2 = -4.344910055 Reorder the terms: 4.344910055 + x2 = -4.344910055 + 4.344910055 Combine like terms: -4.344910055 + 4.344910055 = 0.000000000 4.344910055 + x2 = 0.000000000 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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