s^2-26s=11

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Solution for s^2-26s=11 equation:


Simplifying
s2 + -26s = 11

Reorder the terms:
-26s + s2 = 11

Solving
-26s + s2 = 11

Solving for variable 's'.

Reorder the terms:
-11 + -26s + s2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + -26s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + -26s + 11 + s2 = 0 + 11

Reorder the terms:
-11 + 11 + -26s + s2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -26s + s2 = 0 + 11
-26s + s2 = 0 + 11

Combine like terms: 0 + 11 = 11
-26s + s2 = 11

The s term is -26s.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26s + 169 + s2 = 11 + 169

Reorder the terms:
169 + -26s + s2 = 11 + 169

Combine like terms: 11 + 169 = 180
169 + -26s + s2 = 180

Factor a perfect square on the left side:
(s + -13)(s + -13) = 180

Calculate the square root of the right side: 13.416407865

Break this problem into two subproblems by setting 
(s + -13) equal to 13.416407865 and -13.416407865.

Subproblem 1

s + -13 = 13.416407865 Simplifying s + -13 = 13.416407865 Reorder the terms: -13 + s = 13.416407865 Solving -13 + s = 13.416407865 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + s = 13.416407865 + 13 Combine like terms: -13 + 13 = 0 0 + s = 13.416407865 + 13 s = 13.416407865 + 13 Combine like terms: 13.416407865 + 13 = 26.416407865 s = 26.416407865 Simplifying s = 26.416407865

Subproblem 2

s + -13 = -13.416407865 Simplifying s + -13 = -13.416407865 Reorder the terms: -13 + s = -13.416407865 Solving -13 + s = -13.416407865 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + s = -13.416407865 + 13 Combine like terms: -13 + 13 = 0 0 + s = -13.416407865 + 13 s = -13.416407865 + 13 Combine like terms: -13.416407865 + 13 = -0.416407865 s = -0.416407865 Simplifying s = -0.416407865

Solution

The solution to the problem is based on the solutions from the subproblems. s = {26.416407865, -0.416407865}

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