6w+5w(w-2)=23

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Solution for 6w+5w(w-2)=23 equation:


Simplifying
6w + 5w(w + -2) = 23

Reorder the terms:
6w + 5w(-2 + w) = 23
6w + (-2 * 5w + w * 5w) = 23
6w + (-10w + 5w2) = 23

Combine like terms: 6w + -10w = -4w
-4w + 5w2 = 23

Solving
-4w + 5w2 = 23

Solving for variable 'w'.

Reorder the terms:
-23 + -4w + 5w2 = 23 + -23

Combine like terms: 23 + -23 = 0
-23 + -4w + 5w2 = 0

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

Divide each side by '5'.
-4.6 + -0.8w + w2 = 0

Move the constant term to the right:

Add '4.6' to each side of the equation.
-4.6 + -0.8w + 4.6 + w2 = 0 + 4.6

Reorder the terms:
-4.6 + 4.6 + -0.8w + w2 = 0 + 4.6

Combine like terms: -4.6 + 4.6 = 0.0
0.0 + -0.8w + w2 = 0 + 4.6
-0.8w + w2 = 0 + 4.6

Combine like terms: 0 + 4.6 = 4.6
-0.8w + w2 = 4.6

The w term is -0.8w.  Take half its coefficient (-0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
-0.8w + 0.16 + w2 = 4.6 + 0.16

Reorder the terms:
0.16 + -0.8w + w2 = 4.6 + 0.16

Combine like terms: 4.6 + 0.16 = 4.76
0.16 + -0.8w + w2 = 4.76

Factor a perfect square on the left side:
(w + -0.4)(w + -0.4) = 4.76

Calculate the square root of the right side: 2.181742423

Break this problem into two subproblems by setting 
(w + -0.4) equal to 2.181742423 and -2.181742423.

Subproblem 1

w + -0.4 = 2.181742423 Simplifying w + -0.4 = 2.181742423 Reorder the terms: -0.4 + w = 2.181742423 Solving -0.4 + w = 2.181742423 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + w = 2.181742423 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + w = 2.181742423 + 0.4 w = 2.181742423 + 0.4 Combine like terms: 2.181742423 + 0.4 = 2.581742423 w = 2.581742423 Simplifying w = 2.581742423

Subproblem 2

w + -0.4 = -2.181742423 Simplifying w + -0.4 = -2.181742423 Reorder the terms: -0.4 + w = -2.181742423 Solving -0.4 + w = -2.181742423 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + w = -2.181742423 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + w = -2.181742423 + 0.4 w = -2.181742423 + 0.4 Combine like terms: -2.181742423 + 0.4 = -1.781742423 w = -1.781742423 Simplifying w = -1.781742423

Solution

The solution to the problem is based on the solutions from the subproblems. w = {2.581742423, -1.781742423}

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