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

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


Simplifying
(-1w2 + -5w + 6) + (-2w2 + 4) = 0

Reorder the terms:
(6 + -5w + -1w2) + (-2w2 + 4) = 0

Remove parenthesis around (6 + -5w + -1w2)
6 + -5w + -1w2 + (-2w2 + 4) = 0

Reorder the terms:
6 + -5w + -1w2 + (4 + -2w2) = 0

Remove parenthesis around (4 + -2w2)
6 + -5w + -1w2 + 4 + -2w2 = 0

Reorder the terms:
6 + 4 + -5w + -1w2 + -2w2 = 0

Combine like terms: 6 + 4 = 10
10 + -5w + -1w2 + -2w2 = 0

Combine like terms: -1w2 + -2w2 = -3w2
10 + -5w + -3w2 = 0

Solving
10 + -5w + -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'.
-3.333333333 + 1.666666667w + w2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + 1.666666667w + 3.333333333 + w2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + 1.666666667w + w2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + 1.666666667w + w2 = 0 + 3.333333333
1.666666667w + w2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
1.666666667w + w2 = 3.333333333

The w term is 1.666666667w.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667w + 0.6944444447 + w2 = 3.333333333 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667w + w2 = 3.333333333 + 0.6944444447

Combine like terms: 3.333333333 + 0.6944444447 = 4.0277777777
0.6944444447 + 1.666666667w + w2 = 4.0277777777

Factor a perfect square on the left side:
(w + 0.8333333335)(w + 0.8333333335) = 4.0277777777

Calculate the square root of the right side: 2.00693243

Break this problem into two subproblems by setting 
(w + 0.8333333335) equal to 2.00693243 and -2.00693243.

Subproblem 1

w + 0.8333333335 = 2.00693243 Simplifying w + 0.8333333335 = 2.00693243 Reorder the terms: 0.8333333335 + w = 2.00693243 Solving 0.8333333335 + w = 2.00693243 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + w = 2.00693243 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + w = 2.00693243 + -0.8333333335 w = 2.00693243 + -0.8333333335 Combine like terms: 2.00693243 + -0.8333333335 = 1.1735990965 w = 1.1735990965 Simplifying w = 1.1735990965

Subproblem 2

w + 0.8333333335 = -2.00693243 Simplifying w + 0.8333333335 = -2.00693243 Reorder the terms: 0.8333333335 + w = -2.00693243 Solving 0.8333333335 + w = -2.00693243 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + w = -2.00693243 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + w = -2.00693243 + -0.8333333335 w = -2.00693243 + -0.8333333335 Combine like terms: -2.00693243 + -0.8333333335 = -2.8402657635 w = -2.8402657635 Simplifying w = -2.8402657635

Solution

The solution to the problem is based on the solutions from the subproblems. w = {1.1735990965, -2.8402657635}

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