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Simplifying n(n + -3) = 28 * 128 Reorder the terms: n(-3 + n) = 28 * 128 (-3 * n + n * n) = 28 * 128 (-3n + n2) = 28 * 128 Multiply 28 * 128 -3n + n2 = 3584 Solving -3n + n2 = 3584 Solving for variable 'n'. Reorder the terms: -3584 + -3n + n2 = 3584 + -3584 Combine like terms: 3584 + -3584 = 0 -3584 + -3n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '3584' to each side of the equation. -3584 + -3n + 3584 + n2 = 0 + 3584 Reorder the terms: -3584 + 3584 + -3n + n2 = 0 + 3584 Combine like terms: -3584 + 3584 = 0 0 + -3n + n2 = 0 + 3584 -3n + n2 = 0 + 3584 Combine like terms: 0 + 3584 = 3584 -3n + n2 = 3584 The n term is -3n. 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. -3n + 2.25 + n2 = 3584 + 2.25 Reorder the terms: 2.25 + -3n + n2 = 3584 + 2.25 Combine like terms: 3584 + 2.25 = 3586.25 2.25 + -3n + n2 = 3586.25 Factor a perfect square on the left side: (n + -1.5)(n + -1.5) = 3586.25 Calculate the square root of the right side: 59.885307046 Break this problem into two subproblems by setting (n + -1.5) equal to 59.885307046 and -59.885307046.Subproblem 1
n + -1.5 = 59.885307046 Simplifying n + -1.5 = 59.885307046 Reorder the terms: -1.5 + n = 59.885307046 Solving -1.5 + n = 59.885307046 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + n = 59.885307046 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + n = 59.885307046 + 1.5 n = 59.885307046 + 1.5 Combine like terms: 59.885307046 + 1.5 = 61.385307046 n = 61.385307046 Simplifying n = 61.385307046Subproblem 2
n + -1.5 = -59.885307046 Simplifying n + -1.5 = -59.885307046 Reorder the terms: -1.5 + n = -59.885307046 Solving -1.5 + n = -59.885307046 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + n = -59.885307046 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + n = -59.885307046 + 1.5 n = -59.885307046 + 1.5 Combine like terms: -59.885307046 + 1.5 = -58.385307046 n = -58.385307046 Simplifying n = -58.385307046Solution
The solution to the problem is based on the solutions from the subproblems. n = {61.385307046, -58.385307046}
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