11B^2+2B-186=0

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Solution for 11B^2+2B-186=0 equation:


Simplifying
11B2 + 2B + -186 = 0

Reorder the terms:
-186 + 2B + 11B2 = 0

Solving
-186 + 2B + 11B2 = 0

Solving for variable 'B'.

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

Divide each side by '11'.
-16.90909091 + 0.1818181818B + B2 = 0

Move the constant term to the right:

Add '16.90909091' to each side of the equation.
-16.90909091 + 0.1818181818B + 16.90909091 + B2 = 0 + 16.90909091

Reorder the terms:
-16.90909091 + 16.90909091 + 0.1818181818B + B2 = 0 + 16.90909091

Combine like terms: -16.90909091 + 16.90909091 = 0.00000000
0.00000000 + 0.1818181818B + B2 = 0 + 16.90909091
0.1818181818B + B2 = 0 + 16.90909091

Combine like terms: 0 + 16.90909091 = 16.90909091
0.1818181818B + B2 = 16.90909091

The B term is 0.1818181818B.  Take half its coefficient (0.0909090909).
Square it (0.008264462808) and add it to both sides.

Add '0.008264462808' to each side of the equation.
0.1818181818B + 0.008264462808 + B2 = 16.90909091 + 0.008264462808

Reorder the terms:
0.008264462808 + 0.1818181818B + B2 = 16.90909091 + 0.008264462808

Combine like terms: 16.90909091 + 0.008264462808 = 16.917355372808
0.008264462808 + 0.1818181818B + B2 = 16.917355372808

Factor a perfect square on the left side:
(B + 0.0909090909)(B + 0.0909090909) = 16.917355372808

Calculate the square root of the right side: 4.113071282

Break this problem into two subproblems by setting 
(B + 0.0909090909) equal to 4.113071282 and -4.113071282.

Subproblem 1

B + 0.0909090909 = 4.113071282 Simplifying B + 0.0909090909 = 4.113071282 Reorder the terms: 0.0909090909 + B = 4.113071282 Solving 0.0909090909 + B = 4.113071282 Solving for variable 'B'. Move all terms containing B to the left, all other terms to the right. Add '-0.0909090909' to each side of the equation. 0.0909090909 + -0.0909090909 + B = 4.113071282 + -0.0909090909 Combine like terms: 0.0909090909 + -0.0909090909 = 0.0000000000 0.0000000000 + B = 4.113071282 + -0.0909090909 B = 4.113071282 + -0.0909090909 Combine like terms: 4.113071282 + -0.0909090909 = 4.0221621911 B = 4.0221621911 Simplifying B = 4.0221621911

Subproblem 2

B + 0.0909090909 = -4.113071282 Simplifying B + 0.0909090909 = -4.113071282 Reorder the terms: 0.0909090909 + B = -4.113071282 Solving 0.0909090909 + B = -4.113071282 Solving for variable 'B'. Move all terms containing B to the left, all other terms to the right. Add '-0.0909090909' to each side of the equation. 0.0909090909 + -0.0909090909 + B = -4.113071282 + -0.0909090909 Combine like terms: 0.0909090909 + -0.0909090909 = 0.0000000000 0.0000000000 + B = -4.113071282 + -0.0909090909 B = -4.113071282 + -0.0909090909 Combine like terms: -4.113071282 + -0.0909090909 = -4.2039803729 B = -4.2039803729 Simplifying B = -4.2039803729

Solution

The solution to the problem is based on the solutions from the subproblems. B = {4.0221621911, -4.2039803729}

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