b^2+8b-23716=0

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Solution for b^2+8b-23716=0 equation:


Simplifying
b2 + 8b + -23716 = 0

Reorder the terms:
-23716 + 8b + b2 = 0

Solving
-23716 + 8b + b2 = 0

Solving for variable 'b'.

Begin completing the square.

Move the constant term to the right:

Add '23716' to each side of the equation.
-23716 + 8b + 23716 + b2 = 0 + 23716

Reorder the terms:
-23716 + 23716 + 8b + b2 = 0 + 23716

Combine like terms: -23716 + 23716 = 0
0 + 8b + b2 = 0 + 23716
8b + b2 = 0 + 23716

Combine like terms: 0 + 23716 = 23716
8b + b2 = 23716

The b term is 8b.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8b + 16 + b2 = 23716 + 16

Reorder the terms:
16 + 8b + b2 = 23716 + 16

Combine like terms: 23716 + 16 = 23732
16 + 8b + b2 = 23732

Factor a perfect square on the left side:
(b + 4)(b + 4) = 23732

Calculate the square root of the right side: 154.051939293

Break this problem into two subproblems by setting 
(b + 4) equal to 154.051939293 and -154.051939293.

Subproblem 1

b + 4 = 154.051939293 Simplifying b + 4 = 154.051939293 Reorder the terms: 4 + b = 154.051939293 Solving 4 + b = 154.051939293 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + b = 154.051939293 + -4 Combine like terms: 4 + -4 = 0 0 + b = 154.051939293 + -4 b = 154.051939293 + -4 Combine like terms: 154.051939293 + -4 = 150.051939293 b = 150.051939293 Simplifying b = 150.051939293

Subproblem 2

b + 4 = -154.051939293 Simplifying b + 4 = -154.051939293 Reorder the terms: 4 + b = -154.051939293 Solving 4 + b = -154.051939293 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + b = -154.051939293 + -4 Combine like terms: 4 + -4 = 0 0 + b = -154.051939293 + -4 b = -154.051939293 + -4 Combine like terms: -154.051939293 + -4 = -158.051939293 b = -158.051939293 Simplifying b = -158.051939293

Solution

The solution to the problem is based on the solutions from the subproblems. b = {150.051939293, -158.051939293}

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