s^2=4s+6

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


Simplifying
s2 = 4s + 6

Reorder the terms:
s2 = 6 + 4s

Solving
s2 = 6 + 4s

Solving for variable 's'.

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

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

Combine like terms: 6 + -6 = 0
-6 + -4s + s2 = 0 + 4s + -4s
-6 + -4s + s2 = 4s + -4s

Combine like terms: 4s + -4s = 0
-6 + -4s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -4s + 6 + s2 = 0 + 6

Reorder the terms:
-6 + 6 + -4s + s2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -4s + s2 = 0 + 6
-4s + s2 = 0 + 6

Combine like terms: 0 + 6 = 6
-4s + s2 = 6

The s term is -4s.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4s + 4 + s2 = 6 + 4

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

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

Factor a perfect square on the left side:
(s + -2)(s + -2) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(s + -2) equal to 3.16227766 and -3.16227766.

Subproblem 1

s + -2 = 3.16227766 Simplifying s + -2 = 3.16227766 Reorder the terms: -2 + s = 3.16227766 Solving -2 + s = 3.16227766 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + s = 3.16227766 + 2 Combine like terms: -2 + 2 = 0 0 + s = 3.16227766 + 2 s = 3.16227766 + 2 Combine like terms: 3.16227766 + 2 = 5.16227766 s = 5.16227766 Simplifying s = 5.16227766

Subproblem 2

s + -2 = -3.16227766 Simplifying s + -2 = -3.16227766 Reorder the terms: -2 + s = -3.16227766 Solving -2 + s = -3.16227766 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + s = -3.16227766 + 2 Combine like terms: -2 + 2 = 0 0 + s = -3.16227766 + 2 s = -3.16227766 + 2 Combine like terms: -3.16227766 + 2 = -1.16227766 s = -1.16227766 Simplifying s = -1.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. s = {5.16227766, -1.16227766}

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