5s^2-35s-32=0

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Solution for 5s^2-35s-32=0 equation:


Simplifying
5s2 + -35s + -32 = 0

Reorder the terms:
-32 + -35s + 5s2 = 0

Solving
-32 + -35s + 5s2 = 0

Solving for variable 's'.

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

Divide each side by '5'.
-6.4 + -7s + s2 = 0

Move the constant term to the right:

Add '6.4' to each side of the equation.
-6.4 + -7s + 6.4 + s2 = 0 + 6.4

Reorder the terms:
-6.4 + 6.4 + -7s + s2 = 0 + 6.4

Combine like terms: -6.4 + 6.4 = 0.0
0.0 + -7s + s2 = 0 + 6.4
-7s + s2 = 0 + 6.4

Combine like terms: 0 + 6.4 = 6.4
-7s + s2 = 6.4

The s term is -7s.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7s + 12.25 + s2 = 6.4 + 12.25

Reorder the terms:
12.25 + -7s + s2 = 6.4 + 12.25

Combine like terms: 6.4 + 12.25 = 18.65
12.25 + -7s + s2 = 18.65

Factor a perfect square on the left side:
(s + -3.5)(s + -3.5) = 18.65

Calculate the square root of the right side: 4.318564576

Break this problem into two subproblems by setting 
(s + -3.5) equal to 4.318564576 and -4.318564576.

Subproblem 1

s + -3.5 = 4.318564576 Simplifying s + -3.5 = 4.318564576 Reorder the terms: -3.5 + s = 4.318564576 Solving -3.5 + s = 4.318564576 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + s = 4.318564576 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + s = 4.318564576 + 3.5 s = 4.318564576 + 3.5 Combine like terms: 4.318564576 + 3.5 = 7.818564576 s = 7.818564576 Simplifying s = 7.818564576

Subproblem 2

s + -3.5 = -4.318564576 Simplifying s + -3.5 = -4.318564576 Reorder the terms: -3.5 + s = -4.318564576 Solving -3.5 + s = -4.318564576 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + s = -4.318564576 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + s = -4.318564576 + 3.5 s = -4.318564576 + 3.5 Combine like terms: -4.318564576 + 3.5 = -0.818564576 s = -0.818564576 Simplifying s = -0.818564576

Solution

The solution to the problem is based on the solutions from the subproblems. s = {7.818564576, -0.818564576}

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