b^2+10b+25=11

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Solution for b^2+10b+25=11 equation:


Simplifying
b2 + 10b + 25 = 11

Reorder the terms:
25 + 10b + b2 = 11

Solving
25 + 10b + b2 = 11

Solving for variable 'b'.

Reorder the terms:
25 + -11 + 10b + b2 = 11 + -11

Combine like terms: 25 + -11 = 14
14 + 10b + b2 = 11 + -11

Combine like terms: 11 + -11 = 0
14 + 10b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + 10b + -14 + b2 = 0 + -14

Reorder the terms:
14 + -14 + 10b + b2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + 10b + b2 = 0 + -14
10b + b2 = 0 + -14

Combine like terms: 0 + -14 = -14
10b + b2 = -14

The b term is 10b.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10b + 25 + b2 = -14 + 25

Reorder the terms:
25 + 10b + b2 = -14 + 25

Combine like terms: -14 + 25 = 11
25 + 10b + b2 = 11

Factor a perfect square on the left side:
(b + 5)(b + 5) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(b + 5) equal to 3.31662479 and -3.31662479.

Subproblem 1

b + 5 = 3.31662479 Simplifying b + 5 = 3.31662479 Reorder the terms: 5 + b = 3.31662479 Solving 5 + b = 3.31662479 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + b = 3.31662479 + -5 Combine like terms: 5 + -5 = 0 0 + b = 3.31662479 + -5 b = 3.31662479 + -5 Combine like terms: 3.31662479 + -5 = -1.68337521 b = -1.68337521 Simplifying b = -1.68337521

Subproblem 2

b + 5 = -3.31662479 Simplifying b + 5 = -3.31662479 Reorder the terms: 5 + b = -3.31662479 Solving 5 + b = -3.31662479 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + b = -3.31662479 + -5 Combine like terms: 5 + -5 = 0 0 + b = -3.31662479 + -5 b = -3.31662479 + -5 Combine like terms: -3.31662479 + -5 = -8.31662479 b = -8.31662479 Simplifying b = -8.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. b = {-1.68337521, -8.31662479}

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