11b^2-62b-275=0

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Solution for 11b^2-62b-275=0 equation:


Simplifying
11b2 + -62b + -275 = 0

Reorder the terms:
-275 + -62b + 11b2 = 0

Solving
-275 + -62b + 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'.
-25 + -5.636363636b + b2 = 0

Move the constant term to the right:

Add '25' to each side of the equation.
-25 + -5.636363636b + 25 + b2 = 0 + 25

Reorder the terms:
-25 + 25 + -5.636363636b + b2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + -5.636363636b + b2 = 0 + 25
-5.636363636b + b2 = 0 + 25

Combine like terms: 0 + 25 = 25
-5.636363636b + b2 = 25

The b term is -5.636363636b.  Take half its coefficient (-2.818181818).
Square it (7.942148759) and add it to both sides.

Add '7.942148759' to each side of the equation.
-5.636363636b + 7.942148759 + b2 = 25 + 7.942148759

Reorder the terms:
7.942148759 + -5.636363636b + b2 = 25 + 7.942148759

Combine like terms: 25 + 7.942148759 = 32.942148759
7.942148759 + -5.636363636b + b2 = 32.942148759

Factor a perfect square on the left side:
(b + -2.818181818)(b + -2.818181818) = 32.942148759

Calculate the square root of the right side: 5.739525134

Break this problem into two subproblems by setting 
(b + -2.818181818) equal to 5.739525134 and -5.739525134.

Subproblem 1

b + -2.818181818 = 5.739525134 Simplifying b + -2.818181818 = 5.739525134 Reorder the terms: -2.818181818 + b = 5.739525134 Solving -2.818181818 + b = 5.739525134 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '2.818181818' to each side of the equation. -2.818181818 + 2.818181818 + b = 5.739525134 + 2.818181818 Combine like terms: -2.818181818 + 2.818181818 = 0.000000000 0.000000000 + b = 5.739525134 + 2.818181818 b = 5.739525134 + 2.818181818 Combine like terms: 5.739525134 + 2.818181818 = 8.557706952 b = 8.557706952 Simplifying b = 8.557706952

Subproblem 2

b + -2.818181818 = -5.739525134 Simplifying b + -2.818181818 = -5.739525134 Reorder the terms: -2.818181818 + b = -5.739525134 Solving -2.818181818 + b = -5.739525134 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '2.818181818' to each side of the equation. -2.818181818 + 2.818181818 + b = -5.739525134 + 2.818181818 Combine like terms: -2.818181818 + 2.818181818 = 0.000000000 0.000000000 + b = -5.739525134 + 2.818181818 b = -5.739525134 + 2.818181818 Combine like terms: -5.739525134 + 2.818181818 = -2.921343316 b = -2.921343316 Simplifying b = -2.921343316

Solution

The solution to the problem is based on the solutions from the subproblems. b = {8.557706952, -2.921343316}

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