13w^2+1=-8w

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Solution for 13w^2+1=-8w equation:


Simplifying
13w2 + 1 = -8w

Reorder the terms:
1 + 13w2 = -8w

Solving
1 + 13w2 = -8w

Solving for variable 'w'.

Reorder the terms:
1 + 8w + 13w2 = -8w + 8w

Combine like terms: -8w + 8w = 0
1 + 8w + 13w2 = 0

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

Divide each side by '13'.
0.07692307692 + 0.6153846154w + w2 = 0

Move the constant term to the right:

Add '-0.07692307692' to each side of the equation.
0.07692307692 + 0.6153846154w + -0.07692307692 + w2 = 0 + -0.07692307692

Reorder the terms:
0.07692307692 + -0.07692307692 + 0.6153846154w + w2 = 0 + -0.07692307692

Combine like terms: 0.07692307692 + -0.07692307692 = 0.00000000000
0.00000000000 + 0.6153846154w + w2 = 0 + -0.07692307692
0.6153846154w + w2 = 0 + -0.07692307692

Combine like terms: 0 + -0.07692307692 = -0.07692307692
0.6153846154w + w2 = -0.07692307692

The w term is 0.6153846154w.  Take half its coefficient (0.3076923077).
Square it (0.09467455622) and add it to both sides.

Add '0.09467455622' to each side of the equation.
0.6153846154w + 0.09467455622 + w2 = -0.07692307692 + 0.09467455622

Reorder the terms:
0.09467455622 + 0.6153846154w + w2 = -0.07692307692 + 0.09467455622

Combine like terms: -0.07692307692 + 0.09467455622 = 0.0177514793
0.09467455622 + 0.6153846154w + w2 = 0.0177514793

Factor a perfect square on the left side:
(w + 0.3076923077)(w + 0.3076923077) = 0.0177514793

Calculate the square root of the right side: 0.133234678

Break this problem into two subproblems by setting 
(w + 0.3076923077) equal to 0.133234678 and -0.133234678.

Subproblem 1

w + 0.3076923077 = 0.133234678 Simplifying w + 0.3076923077 = 0.133234678 Reorder the terms: 0.3076923077 + w = 0.133234678 Solving 0.3076923077 + w = 0.133234678 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.3076923077' to each side of the equation. 0.3076923077 + -0.3076923077 + w = 0.133234678 + -0.3076923077 Combine like terms: 0.3076923077 + -0.3076923077 = 0.0000000000 0.0000000000 + w = 0.133234678 + -0.3076923077 w = 0.133234678 + -0.3076923077 Combine like terms: 0.133234678 + -0.3076923077 = -0.1744576297 w = -0.1744576297 Simplifying w = -0.1744576297

Subproblem 2

w + 0.3076923077 = -0.133234678 Simplifying w + 0.3076923077 = -0.133234678 Reorder the terms: 0.3076923077 + w = -0.133234678 Solving 0.3076923077 + w = -0.133234678 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.3076923077' to each side of the equation. 0.3076923077 + -0.3076923077 + w = -0.133234678 + -0.3076923077 Combine like terms: 0.3076923077 + -0.3076923077 = 0.0000000000 0.0000000000 + w = -0.133234678 + -0.3076923077 w = -0.133234678 + -0.3076923077 Combine like terms: -0.133234678 + -0.3076923077 = -0.4409269857 w = -0.4409269857 Simplifying w = -0.4409269857

Solution

The solution to the problem is based on the solutions from the subproblems. w = {-0.1744576297, -0.4409269857}

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