(5s^2)-(2s-s)=47.921015

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Solution for (5s^2)-(2s-s)=47.921015 equation:


Simplifying
(5s2) + -1(2s + -1s) = 47.921015

Combine like terms: 2s + -1s = 1s
(5s2) + -1(1s) = 47.921015

Remove parenthesis around (1s)
(5s2) + -1 * 1s = 47.921015

Multiply -1 * 1
(5s2) + -1s = 47.921015

Reorder the terms:
-1s + (5s2) = 47.921015

Solving
-1s + (5s2) = 47.921015

Solving for variable 's'.

Reorder the terms:
-47.921015 + -1s + (5s2) = 47.921015 + -47.921015

Combine like terms: 47.921015 + -47.921015 = 0.000000
-47.921015 + -1s + (5s2) = 0.000000

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

Divide each side by '5'.
-9.584203 + -0.2s + s2 = 0.000000

Move the constant term to the right:

Add '9.584203' to each side of the equation.
-9.584203 + -0.2s + 9.584203 + s2 = 0.000000 + 9.584203

Reorder the terms:
-9.584203 + 9.584203 + -0.2s + s2 = 0.000000 + 9.584203

Combine like terms: -9.584203 + 9.584203 = 0.000000
0.000000 + -0.2s + s2 = 0.000000 + 9.584203
-0.2s + s2 = 0.000000 + 9.584203

Combine like terms: 0.000000 + 9.584203 = 9.584203
-0.2s + s2 = 9.584203

The s term is -0.2s.  Take half its coefficient (-0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
-0.2s + 0.01 + s2 = 9.584203 + 0.01

Reorder the terms:
0.01 + -0.2s + s2 = 9.584203 + 0.01

Combine like terms: 9.584203 + 0.01 = 9.594203
0.01 + -0.2s + s2 = 9.594203

Factor a perfect square on the left side:
((s) + -0.1)((s) + -0.1) = 9.594203

Calculate the square root of the right side: 3.097451049

Break this problem into two subproblems by setting 
((s) + -0.1) equal to 3.097451049 and -3.097451049.

Subproblem 1

(s) + -0.1 = 3.097451049 Simplifying (s) + -0.1 = 3.097451049 s + -0.1 = 3.097451049 Reorder the terms: -0.1 + s = 3.097451049 Solving -0.1 + s = 3.097451049 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + s = 3.097451049 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + s = 3.097451049 + 0.1 s = 3.097451049 + 0.1 Combine like terms: 3.097451049 + 0.1 = 3.197451049 s = 3.197451049 Simplifying s = 3.197451049

Subproblem 2

(s) + -0.1 = -3.097451049 Simplifying (s) + -0.1 = -3.097451049 s + -0.1 = -3.097451049 Reorder the terms: -0.1 + s = -3.097451049 Solving -0.1 + s = -3.097451049 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + s = -3.097451049 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + s = -3.097451049 + 0.1 s = -3.097451049 + 0.1 Combine like terms: -3.097451049 + 0.1 = -2.997451049 s = -2.997451049 Simplifying s = -2.997451049

Solution

The solution to the problem is based on the solutions from the subproblems. s = {3.197451049, -2.997451049}

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