-1+9(w^2-9w-5)-6w^2=

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Solution for -1+9(w^2-9w-5)-6w^2= equation:


Simplifying
-1 + 9(w2 + -9w + -5) + -6w2 = 0

Reorder the terms:
-1 + 9(-5 + -9w + w2) + -6w2 = 0
-1 + (-5 * 9 + -9w * 9 + w2 * 9) + -6w2 = 0
-1 + (-45 + -81w + 9w2) + -6w2 = 0

Combine like terms: -1 + -45 = -46
-46 + -81w + 9w2 + -6w2 = 0

Combine like terms: 9w2 + -6w2 = 3w2
-46 + -81w + 3w2 = 0

Solving
-46 + -81w + 3w2 = 0

Solving for variable 'w'.

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

Divide each side by '3'.
-15.33333333 + -27w + w2 = 0

Move the constant term to the right:

Add '15.33333333' to each side of the equation.
-15.33333333 + -27w + 15.33333333 + w2 = 0 + 15.33333333

Reorder the terms:
-15.33333333 + 15.33333333 + -27w + w2 = 0 + 15.33333333

Combine like terms: -15.33333333 + 15.33333333 = 0.00000000
0.00000000 + -27w + w2 = 0 + 15.33333333
-27w + w2 = 0 + 15.33333333

Combine like terms: 0 + 15.33333333 = 15.33333333
-27w + w2 = 15.33333333

The w term is -27w.  Take half its coefficient (-13.5).
Square it (182.25) and add it to both sides.

Add '182.25' to each side of the equation.
-27w + 182.25 + w2 = 15.33333333 + 182.25

Reorder the terms:
182.25 + -27w + w2 = 15.33333333 + 182.25

Combine like terms: 15.33333333 + 182.25 = 197.58333333
182.25 + -27w + w2 = 197.58333333

Factor a perfect square on the left side:
(w + -13.5)(w + -13.5) = 197.58333333

Calculate the square root of the right side: 14.056433877

Break this problem into two subproblems by setting 
(w + -13.5) equal to 14.056433877 and -14.056433877.

Subproblem 1

w + -13.5 = 14.056433877 Simplifying w + -13.5 = 14.056433877 Reorder the terms: -13.5 + w = 14.056433877 Solving -13.5 + w = 14.056433877 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + w = 14.056433877 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + w = 14.056433877 + 13.5 w = 14.056433877 + 13.5 Combine like terms: 14.056433877 + 13.5 = 27.556433877 w = 27.556433877 Simplifying w = 27.556433877

Subproblem 2

w + -13.5 = -14.056433877 Simplifying w + -13.5 = -14.056433877 Reorder the terms: -13.5 + w = -14.056433877 Solving -13.5 + w = -14.056433877 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + w = -14.056433877 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + w = -14.056433877 + 13.5 w = -14.056433877 + 13.5 Combine like terms: -14.056433877 + 13.5 = -0.556433877 w = -0.556433877 Simplifying w = -0.556433877

Solution

The solution to the problem is based on the solutions from the subproblems. w = {27.556433877, -0.556433877}

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