168=2w^2+10w+14

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Solution for 168=2w^2+10w+14 equation:


Simplifying
168 = 2w2 + 10w + 14

Reorder the terms:
168 = 14 + 10w + 2w2

Solving
168 = 14 + 10w + 2w2

Solving for variable 'w'.

Combine like terms: 168 + -14 = 154
154 + -10w + -2w2 = 14 + 10w + 2w2 + -14 + -10w + -2w2

Reorder the terms:
154 + -10w + -2w2 = 14 + -14 + 10w + -10w + 2w2 + -2w2

Combine like terms: 14 + -14 = 0
154 + -10w + -2w2 = 0 + 10w + -10w + 2w2 + -2w2
154 + -10w + -2w2 = 10w + -10w + 2w2 + -2w2

Combine like terms: 10w + -10w = 0
154 + -10w + -2w2 = 0 + 2w2 + -2w2
154 + -10w + -2w2 = 2w2 + -2w2

Combine like terms: 2w2 + -2w2 = 0
154 + -10w + -2w2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(77 + -5w + -1w2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(77 + -5w + -1w2)' equal to zero and attempt to solve: Simplifying 77 + -5w + -1w2 = 0 Solving 77 + -5w + -1w2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -77 + 5w + w2 = 0 Move the constant term to the right: Add '77' to each side of the equation. -77 + 5w + 77 + w2 = 0 + 77 Reorder the terms: -77 + 77 + 5w + w2 = 0 + 77 Combine like terms: -77 + 77 = 0 0 + 5w + w2 = 0 + 77 5w + w2 = 0 + 77 Combine like terms: 0 + 77 = 77 5w + w2 = 77 The w term is 5w. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5w + 6.25 + w2 = 77 + 6.25 Reorder the terms: 6.25 + 5w + w2 = 77 + 6.25 Combine like terms: 77 + 6.25 = 83.25 6.25 + 5w + w2 = 83.25 Factor a perfect square on the left side: (w + 2.5)(w + 2.5) = 83.25 Calculate the square root of the right side: 9.124143795 Break this problem into two subproblems by setting (w + 2.5) equal to 9.124143795 and -9.124143795.

Subproblem 1

w + 2.5 = 9.124143795 Simplifying w + 2.5 = 9.124143795 Reorder the terms: 2.5 + w = 9.124143795 Solving 2.5 + w = 9.124143795 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + w = 9.124143795 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + w = 9.124143795 + -2.5 w = 9.124143795 + -2.5 Combine like terms: 9.124143795 + -2.5 = 6.624143795 w = 6.624143795 Simplifying w = 6.624143795

Subproblem 2

w + 2.5 = -9.124143795 Simplifying w + 2.5 = -9.124143795 Reorder the terms: 2.5 + w = -9.124143795 Solving 2.5 + w = -9.124143795 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + w = -9.124143795 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + w = -9.124143795 + -2.5 w = -9.124143795 + -2.5 Combine like terms: -9.124143795 + -2.5 = -11.624143795 w = -11.624143795 Simplifying w = -11.624143795

Solution

The solution to the problem is based on the solutions from the subproblems. w = {6.624143795, -11.624143795}

Solution

w = {6.624143795, -11.624143795}

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