b^2=8+2b+6-5

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Solution for b^2=8+2b+6-5 equation:


Simplifying
b2 = 8 + 2b + 6 + -5

Reorder the terms:
b2 = 8 + 6 + -5 + 2b

Combine like terms: 8 + 6 = 14
b2 = 14 + -5 + 2b

Combine like terms: 14 + -5 = 9
b2 = 9 + 2b

Solving
b2 = 9 + 2b

Solving for variable 'b'.

Reorder the terms:
-9 + -2b + b2 = 9 + 2b + -9 + -2b

Reorder the terms:
-9 + -2b + b2 = 9 + -9 + 2b + -2b

Combine like terms: 9 + -9 = 0
-9 + -2b + b2 = 0 + 2b + -2b
-9 + -2b + b2 = 2b + -2b

Combine like terms: 2b + -2b = 0
-9 + -2b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -2b + 9 + b2 = 0 + 9

Reorder the terms:
-9 + 9 + -2b + b2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -2b + b2 = 0 + 9
-2b + b2 = 0 + 9

Combine like terms: 0 + 9 = 9
-2b + b2 = 9

The b term is -2b.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2b + 1 + b2 = 9 + 1

Reorder the terms:
1 + -2b + b2 = 9 + 1

Combine like terms: 9 + 1 = 10
1 + -2b + b2 = 10

Factor a perfect square on the left side:
(b + -1)(b + -1) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(b + -1) equal to 3.16227766 and -3.16227766.

Subproblem 1

b + -1 = 3.16227766 Simplifying b + -1 = 3.16227766 Reorder the terms: -1 + b = 3.16227766 Solving -1 + b = 3.16227766 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + b = 3.16227766 + 1 Combine like terms: -1 + 1 = 0 0 + b = 3.16227766 + 1 b = 3.16227766 + 1 Combine like terms: 3.16227766 + 1 = 4.16227766 b = 4.16227766 Simplifying b = 4.16227766

Subproblem 2

b + -1 = -3.16227766 Simplifying b + -1 = -3.16227766 Reorder the terms: -1 + b = -3.16227766 Solving -1 + b = -3.16227766 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + b = -3.16227766 + 1 Combine like terms: -1 + 1 = 0 0 + b = -3.16227766 + 1 b = -3.16227766 + 1 Combine like terms: -3.16227766 + 1 = -2.16227766 b = -2.16227766 Simplifying b = -2.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. b = {4.16227766, -2.16227766}

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