(b^2-7b-44)+(b+2)=0

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Solution for (b^2-7b-44)+(b+2)=0 equation:


Simplifying
(b2 + -7b + -44) + (b + 2) = 0

Reorder the terms:
(-44 + -7b + b2) + (b + 2) = 0

Remove parenthesis around (-44 + -7b + b2)
-44 + -7b + b2 + (b + 2) = 0

Reorder the terms:
-44 + -7b + b2 + (2 + b) = 0

Remove parenthesis around (2 + b)
-44 + -7b + b2 + 2 + b = 0

Reorder the terms:
-44 + 2 + -7b + b + b2 = 0

Combine like terms: -44 + 2 = -42
-42 + -7b + b + b2 = 0

Combine like terms: -7b + b = -6b
-42 + -6b + b2 = 0

Solving
-42 + -6b + b2 = 0

Solving for variable 'b'.

Begin completing the square.

Move the constant term to the right:

Add '42' to each side of the equation.
-42 + -6b + 42 + b2 = 0 + 42

Reorder the terms:
-42 + 42 + -6b + b2 = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -6b + b2 = 0 + 42
-6b + b2 = 0 + 42

Combine like terms: 0 + 42 = 42
-6b + b2 = 42

The b term is -6b.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6b + 9 + b2 = 42 + 9

Reorder the terms:
9 + -6b + b2 = 42 + 9

Combine like terms: 42 + 9 = 51
9 + -6b + b2 = 51

Factor a perfect square on the left side:
(b + -3)(b + -3) = 51

Calculate the square root of the right side: 7.141428429

Break this problem into two subproblems by setting 
(b + -3) equal to 7.141428429 and -7.141428429.

Subproblem 1

b + -3 = 7.141428429 Simplifying b + -3 = 7.141428429 Reorder the terms: -3 + b = 7.141428429 Solving -3 + b = 7.141428429 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + b = 7.141428429 + 3 Combine like terms: -3 + 3 = 0 0 + b = 7.141428429 + 3 b = 7.141428429 + 3 Combine like terms: 7.141428429 + 3 = 10.141428429 b = 10.141428429 Simplifying b = 10.141428429

Subproblem 2

b + -3 = -7.141428429 Simplifying b + -3 = -7.141428429 Reorder the terms: -3 + b = -7.141428429 Solving -3 + b = -7.141428429 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + b = -7.141428429 + 3 Combine like terms: -3 + 3 = 0 0 + b = -7.141428429 + 3 b = -7.141428429 + 3 Combine like terms: -7.141428429 + 3 = -4.141428429 b = -4.141428429 Simplifying b = -4.141428429

Solution

The solution to the problem is based on the solutions from the subproblems. b = {10.141428429, -4.141428429}

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