11b^2-47b-24=0

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Solution for 11b^2-47b-24=0 equation:


Simplifying
11b2 + -47b + -24 = 0

Reorder the terms:
-24 + -47b + 11b2 = 0

Solving
-24 + -47b + 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'.
-2.181818182 + -4.272727273b + b2 = 0

Move the constant term to the right:

Add '2.181818182' to each side of the equation.
-2.181818182 + -4.272727273b + 2.181818182 + b2 = 0 + 2.181818182

Reorder the terms:
-2.181818182 + 2.181818182 + -4.272727273b + b2 = 0 + 2.181818182

Combine like terms: -2.181818182 + 2.181818182 = 0.000000000
0.000000000 + -4.272727273b + b2 = 0 + 2.181818182
-4.272727273b + b2 = 0 + 2.181818182

Combine like terms: 0 + 2.181818182 = 2.181818182
-4.272727273b + b2 = 2.181818182

The b term is -4.272727273b.  Take half its coefficient (-2.136363637).
Square it (4.564049590) and add it to both sides.

Add '4.564049590' to each side of the equation.
-4.272727273b + 4.564049590 + b2 = 2.181818182 + 4.564049590

Reorder the terms:
4.564049590 + -4.272727273b + b2 = 2.181818182 + 4.564049590

Combine like terms: 2.181818182 + 4.564049590 = 6.745867772
4.564049590 + -4.272727273b + b2 = 6.745867772

Factor a perfect square on the left side:
(b + -2.136363637)(b + -2.136363637) = 6.745867772

Calculate the square root of the right side: 2.597280842

Break this problem into two subproblems by setting 
(b + -2.136363637) equal to 2.597280842 and -2.597280842.

Subproblem 1

b + -2.136363637 = 2.597280842 Simplifying b + -2.136363637 = 2.597280842 Reorder the terms: -2.136363637 + b = 2.597280842 Solving -2.136363637 + b = 2.597280842 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '2.136363637' to each side of the equation. -2.136363637 + 2.136363637 + b = 2.597280842 + 2.136363637 Combine like terms: -2.136363637 + 2.136363637 = 0.000000000 0.000000000 + b = 2.597280842 + 2.136363637 b = 2.597280842 + 2.136363637 Combine like terms: 2.597280842 + 2.136363637 = 4.733644479 b = 4.733644479 Simplifying b = 4.733644479

Subproblem 2

b + -2.136363637 = -2.597280842 Simplifying b + -2.136363637 = -2.597280842 Reorder the terms: -2.136363637 + b = -2.597280842 Solving -2.136363637 + b = -2.597280842 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '2.136363637' to each side of the equation. -2.136363637 + 2.136363637 + b = -2.597280842 + 2.136363637 Combine like terms: -2.136363637 + 2.136363637 = 0.000000000 0.000000000 + b = -2.597280842 + 2.136363637 b = -2.597280842 + 2.136363637 Combine like terms: -2.597280842 + 2.136363637 = -0.460917205 b = -0.460917205 Simplifying b = -0.460917205

Solution

The solution to the problem is based on the solutions from the subproblems. b = {4.733644479, -0.460917205}

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