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Simplifying L(L + -3.5) = 11.76 Reorder the terms: L(-3.5 + L) = 11.76 (-3.5 * L + L * L) = 11.76 (-3.5L + L2) = 11.76 Solving -3.5L + L2 = 11.76 Solving for variable 'L'. Reorder the terms: -11.76 + -3.5L + L2 = 11.76 + -11.76 Combine like terms: 11.76 + -11.76 = 0.00 -11.76 + -3.5L + L2 = 0.00 Begin completing the square. Move the constant term to the right: Add '11.76' to each side of the equation. -11.76 + -3.5L + 11.76 + L2 = 0.00 + 11.76 Reorder the terms: -11.76 + 11.76 + -3.5L + L2 = 0.00 + 11.76 Combine like terms: -11.76 + 11.76 = 0.00 0.00 + -3.5L + L2 = 0.00 + 11.76 -3.5L + L2 = 0.00 + 11.76 Combine like terms: 0.00 + 11.76 = 11.76 -3.5L + L2 = 11.76 The L term is -3.5L. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5L + 3.0625 + L2 = 11.76 + 3.0625 Reorder the terms: 3.0625 + -3.5L + L2 = 11.76 + 3.0625 Combine like terms: 11.76 + 3.0625 = 14.8225 3.0625 + -3.5L + L2 = 14.8225 Factor a perfect square on the left side: (L + -1.75)(L + -1.75) = 14.8225 Calculate the square root of the right side: 3.85 Break this problem into two subproblems by setting (L + -1.75) equal to 3.85 and -3.85.Subproblem 1
L + -1.75 = 3.85 Simplifying L + -1.75 = 3.85 Reorder the terms: -1.75 + L = 3.85 Solving -1.75 + L = 3.85 Solving for variable 'L'. Move all terms containing L to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + L = 3.85 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + L = 3.85 + 1.75 L = 3.85 + 1.75 Combine like terms: 3.85 + 1.75 = 5.6 L = 5.6 Simplifying L = 5.6Subproblem 2
L + -1.75 = -3.85 Simplifying L + -1.75 = -3.85 Reorder the terms: -1.75 + L = -3.85 Solving -1.75 + L = -3.85 Solving for variable 'L'. Move all terms containing L to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + L = -3.85 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + L = -3.85 + 1.75 L = -3.85 + 1.75 Combine like terms: -3.85 + 1.75 = -2.1 L = -2.1 Simplifying L = -2.1Solution
The solution to the problem is based on the solutions from the subproblems. L = {5.6, -2.1}
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