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Simplifying 8(2w2 + w + -9) = 0 Reorder the terms: 8(-9 + w + 2w2) = 0 (-9 * 8 + w * 8 + 2w2 * 8) = 0 (-72 + 8w + 16w2) = 0 Solving -72 + 8w + 16w2 = 0 Solving for variable 'w'. Factor out the Greatest Common Factor (GCF), '8'. 8(-9 + w + 2w2) = 0 Ignore the factor 8.Subproblem 1
Set the factor '(-9 + w + 2w2)' equal to zero and attempt to solve: Simplifying -9 + w + 2w2 = 0 Solving -9 + w + 2w2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -4.5 + 0.5w + w2 = 0 Move the constant term to the right: Add '4.5' to each side of the equation. -4.5 + 0.5w + 4.5 + w2 = 0 + 4.5 Reorder the terms: -4.5 + 4.5 + 0.5w + w2 = 0 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + 0.5w + w2 = 0 + 4.5 0.5w + w2 = 0 + 4.5 Combine like terms: 0 + 4.5 = 4.5 0.5w + w2 = 4.5 The w term is w. 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. 0.5w + 0.25 + w2 = 4.5 + 0.25 Reorder the terms: 0.25 + 0.5w + w2 = 4.5 + 0.25 Combine like terms: 4.5 + 0.25 = 4.75 0.25 + 0.5w + w2 = 4.75 Factor a perfect square on the left side: (w + 0.5)(w + 0.5) = 4.75 Calculate the square root of the right side: 2.179449472 Break this problem into two subproblems by setting (w + 0.5) equal to 2.179449472 and -2.179449472.Subproblem 1
w + 0.5 = 2.179449472 Simplifying w + 0.5 = 2.179449472 Reorder the terms: 0.5 + w = 2.179449472 Solving 0.5 + w = 2.179449472 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 = 2.179449472 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = 2.179449472 + -0.5 w = 2.179449472 + -0.5 Combine like terms: 2.179449472 + -0.5 = 1.679449472 w = 1.679449472 Simplifying w = 1.679449472Subproblem 2
w + 0.5 = -2.179449472 Simplifying w + 0.5 = -2.179449472 Reorder the terms: 0.5 + w = -2.179449472 Solving 0.5 + w = -2.179449472 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 = -2.179449472 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = -2.179449472 + -0.5 w = -2.179449472 + -0.5 Combine like terms: -2.179449472 + -0.5 = -2.679449472 w = -2.679449472 Simplifying w = -2.679449472Solution
The solution to the problem is based on the solutions from the subproblems. w = {1.679449472, -2.679449472}Solution
w = {1.679449472, -2.679449472}
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