(w-6)(w+5)-2=-4

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Solution for (w-6)(w+5)-2=-4 equation:


Simplifying
(w + -6)(w + 5) + -2 = -4

Reorder the terms:
(-6 + w)(w + 5) + -2 = -4

Reorder the terms:
(-6 + w)(5 + w) + -2 = -4

Multiply (-6 + w) * (5 + w)
(-6(5 + w) + w(5 + w)) + -2 = -4
((5 * -6 + w * -6) + w(5 + w)) + -2 = -4
((-30 + -6w) + w(5 + w)) + -2 = -4
(-30 + -6w + (5 * w + w * w)) + -2 = -4
(-30 + -6w + (5w + w2)) + -2 = -4

Combine like terms: -6w + 5w = -1w
(-30 + -1w + w2) + -2 = -4

Reorder the terms:
-30 + -2 + -1w + w2 = -4

Combine like terms: -30 + -2 = -32
-32 + -1w + w2 = -4

Solving
-32 + -1w + w2 = -4

Solving for variable 'w'.

Reorder the terms:
-32 + 4 + -1w + w2 = -4 + 4

Combine like terms: -32 + 4 = -28
-28 + -1w + w2 = -4 + 4

Combine like terms: -4 + 4 = 0
-28 + -1w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '28' to each side of the equation.
-28 + -1w + 28 + w2 = 0 + 28

Reorder the terms:
-28 + 28 + -1w + w2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + -1w + w2 = 0 + 28
-1w + w2 = 0 + 28

Combine like terms: 0 + 28 = 28
-1w + w2 = 28

The w term is -1w.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1w + 0.25 + w2 = 28 + 0.25

Reorder the terms:
0.25 + -1w + w2 = 28 + 0.25

Combine like terms: 28 + 0.25 = 28.25
0.25 + -1w + w2 = 28.25

Factor a perfect square on the left side:
(w + -0.5)(w + -0.5) = 28.25

Calculate the square root of the right side: 5.315072906

Break this problem into two subproblems by setting 
(w + -0.5) equal to 5.315072906 and -5.315072906.

Subproblem 1

w + -0.5 = 5.315072906 Simplifying w + -0.5 = 5.315072906 Reorder the terms: -0.5 + w = 5.315072906 Solving -0.5 + w = 5.315072906 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + w = 5.315072906 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + w = 5.315072906 + 0.5 w = 5.315072906 + 0.5 Combine like terms: 5.315072906 + 0.5 = 5.815072906 w = 5.815072906 Simplifying w = 5.815072906

Subproblem 2

w + -0.5 = -5.315072906 Simplifying w + -0.5 = -5.315072906 Reorder the terms: -0.5 + w = -5.315072906 Solving -0.5 + w = -5.315072906 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + w = -5.315072906 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + w = -5.315072906 + 0.5 w = -5.315072906 + 0.5 Combine like terms: -5.315072906 + 0.5 = -4.815072906 w = -4.815072906 Simplifying w = -4.815072906

Solution

The solution to the problem is based on the solutions from the subproblems. w = {5.815072906, -4.815072906}

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