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Simplifying w2 + -3w + -75 = 0 Reorder the terms: -75 + -3w + w2 = 0 Solving -75 + -3w + w2 = 0 Solving for variable 'w'. Begin completing the square. Move the constant term to the right: Add '75' to each side of the equation. -75 + -3w + 75 + w2 = 0 + 75 Reorder the terms: -75 + 75 + -3w + w2 = 0 + 75 Combine like terms: -75 + 75 = 0 0 + -3w + w2 = 0 + 75 -3w + w2 = 0 + 75 Combine like terms: 0 + 75 = 75 -3w + w2 = 75 The w term is -3w. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3w + 2.25 + w2 = 75 + 2.25 Reorder the terms: 2.25 + -3w + w2 = 75 + 2.25 Combine like terms: 75 + 2.25 = 77.25 2.25 + -3w + w2 = 77.25 Factor a perfect square on the left side: (w + -1.5)(w + -1.5) = 77.25 Calculate the square root of the right side: 8.789197916 Break this problem into two subproblems by setting (w + -1.5) equal to 8.789197916 and -8.789197916.Subproblem 1
w + -1.5 = 8.789197916 Simplifying w + -1.5 = 8.789197916 Reorder the terms: -1.5 + w = 8.789197916 Solving -1.5 + w = 8.789197916 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + w = 8.789197916 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + w = 8.789197916 + 1.5 w = 8.789197916 + 1.5 Combine like terms: 8.789197916 + 1.5 = 10.289197916 w = 10.289197916 Simplifying w = 10.289197916Subproblem 2
w + -1.5 = -8.789197916 Simplifying w + -1.5 = -8.789197916 Reorder the terms: -1.5 + w = -8.789197916 Solving -1.5 + w = -8.789197916 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + w = -8.789197916 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + w = -8.789197916 + 1.5 w = -8.789197916 + 1.5 Combine like terms: -8.789197916 + 1.5 = -7.289197916 w = -7.289197916 Simplifying w = -7.289197916Solution
The solution to the problem is based on the solutions from the subproblems. w = {10.289197916, -7.289197916}
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