12b^2-b-1900=0

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Solution for 12b^2-b-1900=0 equation:


Simplifying
12b2 + -1b + -1900 = 0

Reorder the terms:
-1900 + -1b + 12b2 = 0

Solving
-1900 + -1b + 12b2 = 0

Solving for variable 'b'.

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

Divide each side by '12'.
-158.3333333 + -0.08333333333b + b2 = 0

Move the constant term to the right:

Add '158.3333333' to each side of the equation.
-158.3333333 + -0.08333333333b + 158.3333333 + b2 = 0 + 158.3333333

Reorder the terms:
-158.3333333 + 158.3333333 + -0.08333333333b + b2 = 0 + 158.3333333

Combine like terms: -158.3333333 + 158.3333333 = 0.0000000
0.0000000 + -0.08333333333b + b2 = 0 + 158.3333333
-0.08333333333b + b2 = 0 + 158.3333333

Combine like terms: 0 + 158.3333333 = 158.3333333
-0.08333333333b + b2 = 158.3333333

The b term is -0.08333333333b.  Take half its coefficient (-0.04166666667).
Square it (0.001736111111) and add it to both sides.

Add '0.001736111111' to each side of the equation.
-0.08333333333b + 0.001736111111 + b2 = 158.3333333 + 0.001736111111

Reorder the terms:
0.001736111111 + -0.08333333333b + b2 = 158.3333333 + 0.001736111111

Combine like terms: 158.3333333 + 0.001736111111 = 158.335069411111
0.001736111111 + -0.08333333333b + b2 = 158.335069411111

Factor a perfect square on the left side:
(b + -0.04166666667)(b + -0.04166666667) = 158.335069411111

Calculate the square root of the right side: 12.583126377

Break this problem into two subproblems by setting 
(b + -0.04166666667) equal to 12.583126377 and -12.583126377.

Subproblem 1

b + -0.04166666667 = 12.583126377 Simplifying b + -0.04166666667 = 12.583126377 Reorder the terms: -0.04166666667 + b = 12.583126377 Solving -0.04166666667 + b = 12.583126377 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.04166666667' to each side of the equation. -0.04166666667 + 0.04166666667 + b = 12.583126377 + 0.04166666667 Combine like terms: -0.04166666667 + 0.04166666667 = 0.00000000000 0.00000000000 + b = 12.583126377 + 0.04166666667 b = 12.583126377 + 0.04166666667 Combine like terms: 12.583126377 + 0.04166666667 = 12.62479304367 b = 12.62479304367 Simplifying b = 12.62479304367

Subproblem 2

b + -0.04166666667 = -12.583126377 Simplifying b + -0.04166666667 = -12.583126377 Reorder the terms: -0.04166666667 + b = -12.583126377 Solving -0.04166666667 + b = -12.583126377 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.04166666667' to each side of the equation. -0.04166666667 + 0.04166666667 + b = -12.583126377 + 0.04166666667 Combine like terms: -0.04166666667 + 0.04166666667 = 0.00000000000 0.00000000000 + b = -12.583126377 + 0.04166666667 b = -12.583126377 + 0.04166666667 Combine like terms: -12.583126377 + 0.04166666667 = -12.54145971033 b = -12.54145971033 Simplifying b = -12.54145971033

Solution

The solution to the problem is based on the solutions from the subproblems. b = {12.62479304367, -12.54145971033}

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