-2b^2-11b-2=-3b^2-1

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Solution for -2b^2-11b-2=-3b^2-1 equation:


Simplifying
-2b2 + -11b + -2 = -3b2 + -1

Reorder the terms:
-2 + -11b + -2b2 = -3b2 + -1

Reorder the terms:
-2 + -11b + -2b2 = -1 + -3b2

Solving
-2 + -11b + -2b2 = -1 + -3b2

Solving for variable 'b'.

Reorder the terms:
-2 + 1 + -11b + -2b2 + 3b2 = -1 + -3b2 + 1 + 3b2

Combine like terms: -2 + 1 = -1
-1 + -11b + -2b2 + 3b2 = -1 + -3b2 + 1 + 3b2

Combine like terms: -2b2 + 3b2 = 1b2
-1 + -11b + 1b2 = -1 + -3b2 + 1 + 3b2

Reorder the terms:
-1 + -11b + 1b2 = -1 + 1 + -3b2 + 3b2

Combine like terms: -1 + 1 = 0
-1 + -11b + 1b2 = 0 + -3b2 + 3b2
-1 + -11b + 1b2 = -3b2 + 3b2

Combine like terms: -3b2 + 3b2 = 0
-1 + -11b + 1b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -11b + 1 + b2 = 0 + 1

Reorder the terms:
-1 + 1 + -11b + b2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -11b + b2 = 0 + 1
-11b + b2 = 0 + 1

Combine like terms: 0 + 1 = 1
-11b + b2 = 1

The b term is -11b.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11b + 30.25 + b2 = 1 + 30.25

Reorder the terms:
30.25 + -11b + b2 = 1 + 30.25

Combine like terms: 1 + 30.25 = 31.25
30.25 + -11b + b2 = 31.25

Factor a perfect square on the left side:
(b + -5.5)(b + -5.5) = 31.25

Calculate the square root of the right side: 5.590169944

Break this problem into two subproblems by setting 
(b + -5.5) equal to 5.590169944 and -5.590169944.

Subproblem 1

b + -5.5 = 5.590169944 Simplifying b + -5.5 = 5.590169944 Reorder the terms: -5.5 + b = 5.590169944 Solving -5.5 + b = 5.590169944 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + b = 5.590169944 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + b = 5.590169944 + 5.5 b = 5.590169944 + 5.5 Combine like terms: 5.590169944 + 5.5 = 11.090169944 b = 11.090169944 Simplifying b = 11.090169944

Subproblem 2

b + -5.5 = -5.590169944 Simplifying b + -5.5 = -5.590169944 Reorder the terms: -5.5 + b = -5.590169944 Solving -5.5 + b = -5.590169944 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + b = -5.590169944 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + b = -5.590169944 + 5.5 b = -5.590169944 + 5.5 Combine like terms: -5.590169944 + 5.5 = -0.090169944 b = -0.090169944 Simplifying b = -0.090169944

Solution

The solution to the problem is based on the solutions from the subproblems. b = {11.090169944, -0.090169944}

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