b^2+19b+41=0

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Solution for b^2+19b+41=0 equation:


Simplifying
b2 + 19b + 41 = 0

Reorder the terms:
41 + 19b + b2 = 0

Solving
41 + 19b + b2 = 0

Solving for variable 'b'.

Begin completing the square.

Move the constant term to the right:

Add '-41' to each side of the equation.
41 + 19b + -41 + b2 = 0 + -41

Reorder the terms:
41 + -41 + 19b + b2 = 0 + -41

Combine like terms: 41 + -41 = 0
0 + 19b + b2 = 0 + -41
19b + b2 = 0 + -41

Combine like terms: 0 + -41 = -41
19b + b2 = -41

The b term is 19b.  Take half its coefficient (9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
19b + 90.25 + b2 = -41 + 90.25

Reorder the terms:
90.25 + 19b + b2 = -41 + 90.25

Combine like terms: -41 + 90.25 = 49.25
90.25 + 19b + b2 = 49.25

Factor a perfect square on the left side:
(b + 9.5)(b + 9.5) = 49.25

Calculate the square root of the right side: 7.017834424

Break this problem into two subproblems by setting 
(b + 9.5) equal to 7.017834424 and -7.017834424.

Subproblem 1

b + 9.5 = 7.017834424 Simplifying b + 9.5 = 7.017834424 Reorder the terms: 9.5 + b = 7.017834424 Solving 9.5 + b = 7.017834424 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + b = 7.017834424 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + b = 7.017834424 + -9.5 b = 7.017834424 + -9.5 Combine like terms: 7.017834424 + -9.5 = -2.482165576 b = -2.482165576 Simplifying b = -2.482165576

Subproblem 2

b + 9.5 = -7.017834424 Simplifying b + 9.5 = -7.017834424 Reorder the terms: 9.5 + b = -7.017834424 Solving 9.5 + b = -7.017834424 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + b = -7.017834424 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + b = -7.017834424 + -9.5 b = -7.017834424 + -9.5 Combine like terms: -7.017834424 + -9.5 = -16.517834424 b = -16.517834424 Simplifying b = -16.517834424

Solution

The solution to the problem is based on the solutions from the subproblems. b = {-2.482165576, -16.517834424}

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