(4w^2-4w-6)-(2w^2+3w+6)=

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Solution for (4w^2-4w-6)-(2w^2+3w+6)= equation:


Simplifying
(4w2 + -4w + -6) + -1(2w2 + 3w + 6) = 0

Reorder the terms:
(-6 + -4w + 4w2) + -1(2w2 + 3w + 6) = 0

Remove parenthesis around (-6 + -4w + 4w2)
-6 + -4w + 4w2 + -1(2w2 + 3w + 6) = 0

Reorder the terms:
-6 + -4w + 4w2 + -1(6 + 3w + 2w2) = 0
-6 + -4w + 4w2 + (6 * -1 + 3w * -1 + 2w2 * -1) = 0
-6 + -4w + 4w2 + (-6 + -3w + -2w2) = 0

Reorder the terms:
-6 + -6 + -4w + -3w + 4w2 + -2w2 = 0

Combine like terms: -6 + -6 = -12
-12 + -4w + -3w + 4w2 + -2w2 = 0

Combine like terms: -4w + -3w = -7w
-12 + -7w + 4w2 + -2w2 = 0

Combine like terms: 4w2 + -2w2 = 2w2
-12 + -7w + 2w2 = 0

Solving
-12 + -7w + 2w2 = 0

Solving for variable 'w'.

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

Divide each side by '2'.
-6 + -3.5w + w2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -3.5w + 6 + w2 = 0 + 6

Reorder the terms:
-6 + 6 + -3.5w + w2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -3.5w + w2 = 0 + 6
-3.5w + w2 = 0 + 6

Combine like terms: 0 + 6 = 6
-3.5w + w2 = 6

The w term is -3.5w.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5w + 3.0625 + w2 = 6 + 3.0625

Reorder the terms:
3.0625 + -3.5w + w2 = 6 + 3.0625

Combine like terms: 6 + 3.0625 = 9.0625
3.0625 + -3.5w + w2 = 9.0625

Factor a perfect square on the left side:
(w + -1.75)(w + -1.75) = 9.0625

Calculate the square root of the right side: 3.010398645

Break this problem into two subproblems by setting 
(w + -1.75) equal to 3.010398645 and -3.010398645.

Subproblem 1

w + -1.75 = 3.010398645 Simplifying w + -1.75 = 3.010398645 Reorder the terms: -1.75 + w = 3.010398645 Solving -1.75 + w = 3.010398645 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + w = 3.010398645 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + w = 3.010398645 + 1.75 w = 3.010398645 + 1.75 Combine like terms: 3.010398645 + 1.75 = 4.760398645 w = 4.760398645 Simplifying w = 4.760398645

Subproblem 2

w + -1.75 = -3.010398645 Simplifying w + -1.75 = -3.010398645 Reorder the terms: -1.75 + w = -3.010398645 Solving -1.75 + w = -3.010398645 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + w = -3.010398645 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + w = -3.010398645 + 1.75 w = -3.010398645 + 1.75 Combine like terms: -3.010398645 + 1.75 = -1.260398645 w = -1.260398645 Simplifying w = -1.260398645

Solution

The solution to the problem is based on the solutions from the subproblems. w = {4.760398645, -1.260398645}

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