(s)2(s+3)+4s-5=148

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Solution for (s)2(s+3)+4s-5=148 equation:


Simplifying
(s) * 2(s + 3) + 4s + -5 = 148

Reorder the terms:
s * 2(3 + s) + 4s + -5 = 148

Reorder the terms for easier multiplication:
2s(3 + s) + 4s + -5 = 148
(3 * 2s + s * 2s) + 4s + -5 = 148
(6s + 2s2) + 4s + -5 = 148

Reorder the terms:
-5 + 6s + 4s + 2s2 = 148

Combine like terms: 6s + 4s = 10s
-5 + 10s + 2s2 = 148

Solving
-5 + 10s + 2s2 = 148

Solving for variable 's'.

Reorder the terms:
-5 + -148 + 10s + 2s2 = 148 + -148

Combine like terms: -5 + -148 = -153
-153 + 10s + 2s2 = 148 + -148

Combine like terms: 148 + -148 = 0
-153 + 10s + 2s2 = 0

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

Divide each side by '2'.
-76.5 + 5s + s2 = 0

Move the constant term to the right:

Add '76.5' to each side of the equation.
-76.5 + 5s + 76.5 + s2 = 0 + 76.5

Reorder the terms:
-76.5 + 76.5 + 5s + s2 = 0 + 76.5

Combine like terms: -76.5 + 76.5 = 0.0
0.0 + 5s + s2 = 0 + 76.5
5s + s2 = 0 + 76.5

Combine like terms: 0 + 76.5 = 76.5
5s + s2 = 76.5

The s term is 5s.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5s + 6.25 + s2 = 76.5 + 6.25

Reorder the terms:
6.25 + 5s + s2 = 76.5 + 6.25

Combine like terms: 76.5 + 6.25 = 82.75
6.25 + 5s + s2 = 82.75

Factor a perfect square on the left side:
(s + 2.5)(s + 2.5) = 82.75

Calculate the square root of the right side: 9.096702699

Break this problem into two subproblems by setting 
(s + 2.5) equal to 9.096702699 and -9.096702699.

Subproblem 1

s + 2.5 = 9.096702699 Simplifying s + 2.5 = 9.096702699 Reorder the terms: 2.5 + s = 9.096702699 Solving 2.5 + s = 9.096702699 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + s = 9.096702699 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + s = 9.096702699 + -2.5 s = 9.096702699 + -2.5 Combine like terms: 9.096702699 + -2.5 = 6.596702699 s = 6.596702699 Simplifying s = 6.596702699

Subproblem 2

s + 2.5 = -9.096702699 Simplifying s + 2.5 = -9.096702699 Reorder the terms: 2.5 + s = -9.096702699 Solving 2.5 + s = -9.096702699 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + s = -9.096702699 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + s = -9.096702699 + -2.5 s = -9.096702699 + -2.5 Combine like terms: -9.096702699 + -2.5 = -11.596702699 s = -11.596702699 Simplifying s = -11.596702699

Solution

The solution to the problem is based on the solutions from the subproblems. s = {6.596702699, -11.596702699}

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