s^2=17s+70-0

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Solution for s^2=17s+70-0 equation:


Simplifying
s2 = 17s + 70 + 0

Reorder the terms:
s2 = 70 + 0 + 17s

Combine like terms: 70 + 0 = 70
s2 = 70 + 17s

Solving
s2 = 70 + 17s

Solving for variable 's'.

Reorder the terms:
-70 + -17s + s2 = 70 + 17s + -70 + -17s

Reorder the terms:
-70 + -17s + s2 = 70 + -70 + 17s + -17s

Combine like terms: 70 + -70 = 0
-70 + -17s + s2 = 0 + 17s + -17s
-70 + -17s + s2 = 17s + -17s

Combine like terms: 17s + -17s = 0
-70 + -17s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '70' to each side of the equation.
-70 + -17s + 70 + s2 = 0 + 70

Reorder the terms:
-70 + 70 + -17s + s2 = 0 + 70

Combine like terms: -70 + 70 = 0
0 + -17s + s2 = 0 + 70
-17s + s2 = 0 + 70

Combine like terms: 0 + 70 = 70
-17s + s2 = 70

The s term is -17s.  Take half its coefficient (-8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
-17s + 72.25 + s2 = 70 + 72.25

Reorder the terms:
72.25 + -17s + s2 = 70 + 72.25

Combine like terms: 70 + 72.25 = 142.25
72.25 + -17s + s2 = 142.25

Factor a perfect square on the left side:
(s + -8.5)(s + -8.5) = 142.25

Calculate the square root of the right side: 11.926860442

Break this problem into two subproblems by setting 
(s + -8.5) equal to 11.926860442 and -11.926860442.

Subproblem 1

s + -8.5 = 11.926860442 Simplifying s + -8.5 = 11.926860442 Reorder the terms: -8.5 + s = 11.926860442 Solving -8.5 + s = 11.926860442 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + s = 11.926860442 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + s = 11.926860442 + 8.5 s = 11.926860442 + 8.5 Combine like terms: 11.926860442 + 8.5 = 20.426860442 s = 20.426860442 Simplifying s = 20.426860442

Subproblem 2

s + -8.5 = -11.926860442 Simplifying s + -8.5 = -11.926860442 Reorder the terms: -8.5 + s = -11.926860442 Solving -8.5 + s = -11.926860442 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + s = -11.926860442 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + s = -11.926860442 + 8.5 s = -11.926860442 + 8.5 Combine like terms: -11.926860442 + 8.5 = -3.426860442 s = -3.426860442 Simplifying s = -3.426860442

Solution

The solution to the problem is based on the solutions from the subproblems. s = {20.426860442, -3.426860442}

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