12s^2-7s-2=

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Solution for 12s^2-7s-2= equation:


Simplifying
12s2 + -7s + -2 = 0

Reorder the terms:
-2 + -7s + 12s2 = 0

Solving
-2 + -7s + 12s2 = 0

Solving for variable 's'.

Begin completing the square.  Divide all terms by
12 the coefficient of the squared term: 

Divide each side by '12'.
-0.1666666667 + -0.5833333333s + s2 = 0

Move the constant term to the right:

Add '0.1666666667' to each side of the equation.
-0.1666666667 + -0.5833333333s + 0.1666666667 + s2 = 0 + 0.1666666667

Reorder the terms:
-0.1666666667 + 0.1666666667 + -0.5833333333s + s2 = 0 + 0.1666666667

Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000
0.0000000000 + -0.5833333333s + s2 = 0 + 0.1666666667
-0.5833333333s + s2 = 0 + 0.1666666667

Combine like terms: 0 + 0.1666666667 = 0.1666666667
-0.5833333333s + s2 = 0.1666666667

The s term is -0.5833333333s.  Take half its coefficient (-0.2916666667).
Square it (0.08506944446) and add it to both sides.

Add '0.08506944446' to each side of the equation.
-0.5833333333s + 0.08506944446 + s2 = 0.1666666667 + 0.08506944446

Reorder the terms:
0.08506944446 + -0.5833333333s + s2 = 0.1666666667 + 0.08506944446

Combine like terms: 0.1666666667 + 0.08506944446 = 0.25173611116
0.08506944446 + -0.5833333333s + s2 = 0.25173611116

Factor a perfect square on the left side:
(s + -0.2916666667)(s + -0.2916666667) = 0.25173611116

Calculate the square root of the right side: 0.501733107

Break this problem into two subproblems by setting 
(s + -0.2916666667) equal to 0.501733107 and -0.501733107.

Subproblem 1

s + -0.2916666667 = 0.501733107 Simplifying s + -0.2916666667 = 0.501733107 Reorder the terms: -0.2916666667 + s = 0.501733107 Solving -0.2916666667 + s = 0.501733107 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.2916666667' to each side of the equation. -0.2916666667 + 0.2916666667 + s = 0.501733107 + 0.2916666667 Combine like terms: -0.2916666667 + 0.2916666667 = 0.0000000000 0.0000000000 + s = 0.501733107 + 0.2916666667 s = 0.501733107 + 0.2916666667 Combine like terms: 0.501733107 + 0.2916666667 = 0.7933997737 s = 0.7933997737 Simplifying s = 0.7933997737

Subproblem 2

s + -0.2916666667 = -0.501733107 Simplifying s + -0.2916666667 = -0.501733107 Reorder the terms: -0.2916666667 + s = -0.501733107 Solving -0.2916666667 + s = -0.501733107 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.2916666667' to each side of the equation. -0.2916666667 + 0.2916666667 + s = -0.501733107 + 0.2916666667 Combine like terms: -0.2916666667 + 0.2916666667 = 0.0000000000 0.0000000000 + s = -0.501733107 + 0.2916666667 s = -0.501733107 + 0.2916666667 Combine like terms: -0.501733107 + 0.2916666667 = -0.2100664403 s = -0.2100664403 Simplifying s = -0.2100664403

Solution

The solution to the problem is based on the solutions from the subproblems. s = {0.7933997737, -0.2100664403}

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