s^2+12s-11=35

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Solution for s^2+12s-11=35 equation:


Simplifying
s2 + 12s + -11 = 35

Reorder the terms:
-11 + 12s + s2 = 35

Solving
-11 + 12s + s2 = 35

Solving for variable 's'.

Reorder the terms:
-11 + -35 + 12s + s2 = 35 + -35

Combine like terms: -11 + -35 = -46
-46 + 12s + s2 = 35 + -35

Combine like terms: 35 + -35 = 0
-46 + 12s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '46' to each side of the equation.
-46 + 12s + 46 + s2 = 0 + 46

Reorder the terms:
-46 + 46 + 12s + s2 = 0 + 46

Combine like terms: -46 + 46 = 0
0 + 12s + s2 = 0 + 46
12s + s2 = 0 + 46

Combine like terms: 0 + 46 = 46
12s + s2 = 46

The s term is 12s.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12s + 36 + s2 = 46 + 36

Reorder the terms:
36 + 12s + s2 = 46 + 36

Combine like terms: 46 + 36 = 82
36 + 12s + s2 = 82

Factor a perfect square on the left side:
(s + 6)(s + 6) = 82

Calculate the square root of the right side: 9.055385138

Break this problem into two subproblems by setting 
(s + 6) equal to 9.055385138 and -9.055385138.

Subproblem 1

s + 6 = 9.055385138 Simplifying s + 6 = 9.055385138 Reorder the terms: 6 + s = 9.055385138 Solving 6 + s = 9.055385138 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + s = 9.055385138 + -6 Combine like terms: 6 + -6 = 0 0 + s = 9.055385138 + -6 s = 9.055385138 + -6 Combine like terms: 9.055385138 + -6 = 3.055385138 s = 3.055385138 Simplifying s = 3.055385138

Subproblem 2

s + 6 = -9.055385138 Simplifying s + 6 = -9.055385138 Reorder the terms: 6 + s = -9.055385138 Solving 6 + s = -9.055385138 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + s = -9.055385138 + -6 Combine like terms: 6 + -6 = 0 0 + s = -9.055385138 + -6 s = -9.055385138 + -6 Combine like terms: -9.055385138 + -6 = -15.055385138 s = -15.055385138 Simplifying s = -15.055385138

Solution

The solution to the problem is based on the solutions from the subproblems. s = {3.055385138, -15.055385138}

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