36s^2+60s-25=0

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Solution for 36s^2+60s-25=0 equation:


Simplifying
36s2 + 60s + -25 = 0

Reorder the terms:
-25 + 60s + 36s2 = 0

Solving
-25 + 60s + 36s2 = 0

Solving for variable 's'.

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

Divide each side by '36'.
-0.6944444444 + 1.666666667s + s2 = 0

Move the constant term to the right:

Add '0.6944444444' to each side of the equation.
-0.6944444444 + 1.666666667s + 0.6944444444 + s2 = 0 + 0.6944444444

Reorder the terms:
-0.6944444444 + 0.6944444444 + 1.666666667s + s2 = 0 + 0.6944444444

Combine like terms: -0.6944444444 + 0.6944444444 = 0.0000000000
0.0000000000 + 1.666666667s + s2 = 0 + 0.6944444444
1.666666667s + s2 = 0 + 0.6944444444

Combine like terms: 0 + 0.6944444444 = 0.6944444444
1.666666667s + s2 = 0.6944444444

The s term is 1.666666667s.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667s + 0.6944444447 + s2 = 0.6944444444 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667s + s2 = 0.6944444444 + 0.6944444447

Combine like terms: 0.6944444444 + 0.6944444447 = 1.3888888891
0.6944444447 + 1.666666667s + s2 = 1.3888888891

Factor a perfect square on the left side:
(s + 0.8333333335)(s + 0.8333333335) = 1.3888888891

Calculate the square root of the right side: 1.178511302

Break this problem into two subproblems by setting 
(s + 0.8333333335) equal to 1.178511302 and -1.178511302.

Subproblem 1

s + 0.8333333335 = 1.178511302 Simplifying s + 0.8333333335 = 1.178511302 Reorder the terms: 0.8333333335 + s = 1.178511302 Solving 0.8333333335 + s = 1.178511302 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + s = 1.178511302 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + s = 1.178511302 + -0.8333333335 s = 1.178511302 + -0.8333333335 Combine like terms: 1.178511302 + -0.8333333335 = 0.3451779685 s = 0.3451779685 Simplifying s = 0.3451779685

Subproblem 2

s + 0.8333333335 = -1.178511302 Simplifying s + 0.8333333335 = -1.178511302 Reorder the terms: 0.8333333335 + s = -1.178511302 Solving 0.8333333335 + s = -1.178511302 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + s = -1.178511302 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + s = -1.178511302 + -0.8333333335 s = -1.178511302 + -0.8333333335 Combine like terms: -1.178511302 + -0.8333333335 = -2.0118446355 s = -2.0118446355 Simplifying s = -2.0118446355

Solution

The solution to the problem is based on the solutions from the subproblems. s = {0.3451779685, -2.0118446355}

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