56b^2+b=-1

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Solution for 56b^2+b=-1 equation:


Simplifying
56b2 + b = -1

Reorder the terms:
b + 56b2 = -1

Solving
b + 56b2 = -1

Solving for variable 'b'.

Reorder the terms:
1 + b + 56b2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + b + 56b2 = 0

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

Divide each side by '56'.
0.01785714286 + 0.01785714286b + b2 = 0

Move the constant term to the right:

Add '-0.01785714286' to each side of the equation.
0.01785714286 + 0.01785714286b + -0.01785714286 + b2 = 0 + -0.01785714286

Reorder the terms:
0.01785714286 + -0.01785714286 + 0.01785714286b + b2 = 0 + -0.01785714286

Combine like terms: 0.01785714286 + -0.01785714286 = 0.00000000000
0.00000000000 + 0.01785714286b + b2 = 0 + -0.01785714286
0.01785714286b + b2 = 0 + -0.01785714286

Combine like terms: 0 + -0.01785714286 = -0.01785714286
0.01785714286b + b2 = -0.01785714286

The b term is b.  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.
0.01785714286b + 0.25 + b2 = -0.01785714286 + 0.25

Reorder the terms:
0.25 + 0.01785714286b + b2 = -0.01785714286 + 0.25

Combine like terms: -0.01785714286 + 0.25 = 0.23214285714
0.25 + 0.01785714286b + b2 = 0.23214285714

Factor a perfect square on the left side:
(b + 0.5)(b + 0.5) = 0.23214285714

Calculate the square root of the right side: 0.481812056

Break this problem into two subproblems by setting 
(b + 0.5) equal to 0.481812056 and -0.481812056.

Subproblem 1

b + 0.5 = 0.481812056 Simplifying b + 0.5 = 0.481812056 Reorder the terms: 0.5 + b = 0.481812056 Solving 0.5 + b = 0.481812056 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + b = 0.481812056 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + b = 0.481812056 + -0.5 b = 0.481812056 + -0.5 Combine like terms: 0.481812056 + -0.5 = -0.018187944 b = -0.018187944 Simplifying b = -0.018187944

Subproblem 2

b + 0.5 = -0.481812056 Simplifying b + 0.5 = -0.481812056 Reorder the terms: 0.5 + b = -0.481812056 Solving 0.5 + b = -0.481812056 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + b = -0.481812056 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + b = -0.481812056 + -0.5 b = -0.481812056 + -0.5 Combine like terms: -0.481812056 + -0.5 = -0.981812056 b = -0.981812056 Simplifying b = -0.981812056

Solution

The solution to the problem is based on the solutions from the subproblems. b = {-0.018187944, -0.981812056}

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