80+22b+b^2=0

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Solution for 80+22b+b^2=0 equation:


Simplifying
80 + 22b + b2 = 0

Solving
80 + 22b + b2 = 0

Solving for variable 'b'.

Begin completing the square.

Move the constant term to the right:

Add '-80' to each side of the equation.
80 + 22b + -80 + b2 = 0 + -80

Reorder the terms:
80 + -80 + 22b + b2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + 22b + b2 = 0 + -80
22b + b2 = 0 + -80

Combine like terms: 0 + -80 = -80
22b + b2 = -80

The b term is 22b.  Take half its coefficient (11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
22b + 121 + b2 = -80 + 121

Reorder the terms:
121 + 22b + b2 = -80 + 121

Combine like terms: -80 + 121 = 41
121 + 22b + b2 = 41

Factor a perfect square on the left side:
(b + 11)(b + 11) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(b + 11) equal to 6.403124237 and -6.403124237.

Subproblem 1

b + 11 = 6.403124237 Simplifying b + 11 = 6.403124237 Reorder the terms: 11 + b = 6.403124237 Solving 11 + b = 6.403124237 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + b = 6.403124237 + -11 Combine like terms: 11 + -11 = 0 0 + b = 6.403124237 + -11 b = 6.403124237 + -11 Combine like terms: 6.403124237 + -11 = -4.596875763 b = -4.596875763 Simplifying b = -4.596875763

Subproblem 2

b + 11 = -6.403124237 Simplifying b + 11 = -6.403124237 Reorder the terms: 11 + b = -6.403124237 Solving 11 + b = -6.403124237 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + b = -6.403124237 + -11 Combine like terms: 11 + -11 = 0 0 + b = -6.403124237 + -11 b = -6.403124237 + -11 Combine like terms: -6.403124237 + -11 = -17.403124237 b = -17.403124237 Simplifying b = -17.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. b = {-4.596875763, -17.403124237}

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