2s^2+4s=6s+3

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Solution for 2s^2+4s=6s+3 equation:


Simplifying
2s2 + 4s = 6s + 3

Reorder the terms:
4s + 2s2 = 6s + 3

Reorder the terms:
4s + 2s2 = 3 + 6s

Solving
4s + 2s2 = 3 + 6s

Solving for variable 's'.

Reorder the terms:
-3 + 4s + -6s + 2s2 = 3 + 6s + -3 + -6s

Combine like terms: 4s + -6s = -2s
-3 + -2s + 2s2 = 3 + 6s + -3 + -6s

Reorder the terms:
-3 + -2s + 2s2 = 3 + -3 + 6s + -6s

Combine like terms: 3 + -3 = 0
-3 + -2s + 2s2 = 0 + 6s + -6s
-3 + -2s + 2s2 = 6s + -6s

Combine like terms: 6s + -6s = 0
-3 + -2s + 2s2 = 0

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

Divide each side by '2'.
-1.5 + -1s + s2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + -1s + 1.5 + s2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + -1s + s2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + -1s + s2 = 0 + 1.5
-1s + s2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
-1s + s2 = 1.5

The s term is -1s.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1s + 0.25 + s2 = 1.5 + 0.25

Reorder the terms:
0.25 + -1s + s2 = 1.5 + 0.25

Combine like terms: 1.5 + 0.25 = 1.75
0.25 + -1s + s2 = 1.75

Factor a perfect square on the left side:
(s + -0.5)(s + -0.5) = 1.75

Calculate the square root of the right side: 1.322875656

Break this problem into two subproblems by setting 
(s + -0.5) equal to 1.322875656 and -1.322875656.

Subproblem 1

s + -0.5 = 1.322875656 Simplifying s + -0.5 = 1.322875656 Reorder the terms: -0.5 + s = 1.322875656 Solving -0.5 + s = 1.322875656 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + s = 1.322875656 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + s = 1.322875656 + 0.5 s = 1.322875656 + 0.5 Combine like terms: 1.322875656 + 0.5 = 1.822875656 s = 1.822875656 Simplifying s = 1.822875656

Subproblem 2

s + -0.5 = -1.322875656 Simplifying s + -0.5 = -1.322875656 Reorder the terms: -0.5 + s = -1.322875656 Solving -0.5 + s = -1.322875656 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + s = -1.322875656 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + s = -1.322875656 + 0.5 s = -1.322875656 + 0.5 Combine like terms: -1.322875656 + 0.5 = -0.822875656 s = -0.822875656 Simplifying s = -0.822875656

Solution

The solution to the problem is based on the solutions from the subproblems. s = {1.822875656, -0.822875656}

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