s^2+12s-3=0

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Solution for s^2+12s-3=0 equation:


Simplifying
s2 + 12s + -3 = 0

Reorder the terms:
-3 + 12s + s2 = 0

Solving
-3 + 12s + s2 = 0

Solving for variable 's'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 12s + 3 + s2 = 0 + 3

Reorder the terms:
-3 + 3 + 12s + s2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 12s + s2 = 0 + 3
12s + s2 = 0 + 3

Combine like terms: 0 + 3 = 3
12s + s2 = 3

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 = 3 + 36

Reorder the terms:
36 + 12s + s2 = 3 + 36

Combine like terms: 3 + 36 = 39
36 + 12s + s2 = 39

Factor a perfect square on the left side:
(s + 6)(s + 6) = 39

Calculate the square root of the right side: 6.244997998

Break this problem into two subproblems by setting 
(s + 6) equal to 6.244997998 and -6.244997998.

Subproblem 1

s + 6 = 6.244997998 Simplifying s + 6 = 6.244997998 Reorder the terms: 6 + s = 6.244997998 Solving 6 + s = 6.244997998 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 = 6.244997998 + -6 Combine like terms: 6 + -6 = 0 0 + s = 6.244997998 + -6 s = 6.244997998 + -6 Combine like terms: 6.244997998 + -6 = 0.244997998 s = 0.244997998 Simplifying s = 0.244997998

Subproblem 2

s + 6 = -6.244997998 Simplifying s + 6 = -6.244997998 Reorder the terms: 6 + s = -6.244997998 Solving 6 + s = -6.244997998 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 = -6.244997998 + -6 Combine like terms: 6 + -6 = 0 0 + s = -6.244997998 + -6 s = -6.244997998 + -6 Combine like terms: -6.244997998 + -6 = -12.244997998 s = -12.244997998 Simplifying s = -12.244997998

Solution

The solution to the problem is based on the solutions from the subproblems. s = {0.244997998, -12.244997998}

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