64-48s-9s^2=

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Solution for 64-48s-9s^2= equation:


Simplifying
64 + -48s + -9s2 = 0

Solving
64 + -48s + -9s2 = 0

Solving for variable 's'.

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
-7.111111111 + 5.333333333s + s2 = 0

Move the constant term to the right:

Add '7.111111111' to each side of the equation.
-7.111111111 + 5.333333333s + 7.111111111 + s2 = 0 + 7.111111111

Reorder the terms:
-7.111111111 + 7.111111111 + 5.333333333s + s2 = 0 + 7.111111111

Combine like terms: -7.111111111 + 7.111111111 = 0.000000000
0.000000000 + 5.333333333s + s2 = 0 + 7.111111111
5.333333333s + s2 = 0 + 7.111111111

Combine like terms: 0 + 7.111111111 = 7.111111111
5.333333333s + s2 = 7.111111111

The s term is 5.333333333s.  Take half its coefficient (2.666666667).
Square it (7.111111113) and add it to both sides.

Add '7.111111113' to each side of the equation.
5.333333333s + 7.111111113 + s2 = 7.111111111 + 7.111111113

Reorder the terms:
7.111111113 + 5.333333333s + s2 = 7.111111111 + 7.111111113

Combine like terms: 7.111111111 + 7.111111113 = 14.222222224
7.111111113 + 5.333333333s + s2 = 14.222222224

Factor a perfect square on the left side:
(s + 2.666666667)(s + 2.666666667) = 14.222222224

Calculate the square root of the right side: 3.771236167

Break this problem into two subproblems by setting 
(s + 2.666666667) equal to 3.771236167 and -3.771236167.

Subproblem 1

s + 2.666666667 = 3.771236167 Simplifying s + 2.666666667 = 3.771236167 Reorder the terms: 2.666666667 + s = 3.771236167 Solving 2.666666667 + s = 3.771236167 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-2.666666667' to each side of the equation. 2.666666667 + -2.666666667 + s = 3.771236167 + -2.666666667 Combine like terms: 2.666666667 + -2.666666667 = 0.000000000 0.000000000 + s = 3.771236167 + -2.666666667 s = 3.771236167 + -2.666666667 Combine like terms: 3.771236167 + -2.666666667 = 1.1045695 s = 1.1045695 Simplifying s = 1.1045695

Subproblem 2

s + 2.666666667 = -3.771236167 Simplifying s + 2.666666667 = -3.771236167 Reorder the terms: 2.666666667 + s = -3.771236167 Solving 2.666666667 + s = -3.771236167 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-2.666666667' to each side of the equation. 2.666666667 + -2.666666667 + s = -3.771236167 + -2.666666667 Combine like terms: 2.666666667 + -2.666666667 = 0.000000000 0.000000000 + s = -3.771236167 + -2.666666667 s = -3.771236167 + -2.666666667 Combine like terms: -3.771236167 + -2.666666667 = -6.437902834 s = -6.437902834 Simplifying s = -6.437902834

Solution

The solution to the problem is based on the solutions from the subproblems. s = {1.1045695, -6.437902834}

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