s^2-6s+7=0

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Solution for s^2-6s+7=0 equation:


Simplifying
s2 + -6s + 7 = 0

Reorder the terms:
7 + -6s + s2 = 0

Solving
7 + -6s + s2 = 0

Solving for variable 's'.

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + -6s + -7 + s2 = 0 + -7

Reorder the terms:
7 + -7 + -6s + s2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -6s + s2 = 0 + -7
-6s + s2 = 0 + -7

Combine like terms: 0 + -7 = -7
-6s + s2 = -7

The s term is -6s.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6s + 9 + s2 = -7 + 9

Reorder the terms:
9 + -6s + s2 = -7 + 9

Combine like terms: -7 + 9 = 2
9 + -6s + s2 = 2

Factor a perfect square on the left side:
(s + -3)(s + -3) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(s + -3) equal to 1.414213562 and -1.414213562.

Subproblem 1

s + -3 = 1.414213562 Simplifying s + -3 = 1.414213562 Reorder the terms: -3 + s = 1.414213562 Solving -3 + s = 1.414213562 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + s = 1.414213562 + 3 Combine like terms: -3 + 3 = 0 0 + s = 1.414213562 + 3 s = 1.414213562 + 3 Combine like terms: 1.414213562 + 3 = 4.414213562 s = 4.414213562 Simplifying s = 4.414213562

Subproblem 2

s + -3 = -1.414213562 Simplifying s + -3 = -1.414213562 Reorder the terms: -3 + s = -1.414213562 Solving -3 + s = -1.414213562 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + s = -1.414213562 + 3 Combine like terms: -3 + 3 = 0 0 + s = -1.414213562 + 3 s = -1.414213562 + 3 Combine like terms: -1.414213562 + 3 = 1.585786438 s = 1.585786438 Simplifying s = 1.585786438

Solution

The solution to the problem is based on the solutions from the subproblems. s = {4.414213562, 1.585786438}

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