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Simplifying 15x2 + 7x + -48 = 0 Reorder the terms: -48 + 7x + 15x2 = 0 Solving -48 + 7x + 15x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 15 the coefficient of the squared term: Divide each side by '15'. -3.2 + 0.4666666667x + x2 = 0 Move the constant term to the right: Add '3.2' to each side of the equation. -3.2 + 0.4666666667x + 3.2 + x2 = 0 + 3.2 Reorder the terms: -3.2 + 3.2 + 0.4666666667x + x2 = 0 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + 0.4666666667x + x2 = 0 + 3.2 0.4666666667x + x2 = 0 + 3.2 Combine like terms: 0 + 3.2 = 3.2 0.4666666667x + x2 = 3.2 The x term is 0.4666666667x. Take half its coefficient (0.2333333334). Square it (0.05444444448) and add it to both sides. Add '0.05444444448' to each side of the equation. 0.4666666667x + 0.05444444448 + x2 = 3.2 + 0.05444444448 Reorder the terms: 0.05444444448 + 0.4666666667x + x2 = 3.2 + 0.05444444448 Combine like terms: 3.2 + 0.05444444448 = 3.25444444448 0.05444444448 + 0.4666666667x + x2 = 3.25444444448 Factor a perfect square on the left side: (x + 0.2333333334)(x + 0.2333333334) = 3.25444444448 Calculate the square root of the right side: 1.804007884 Break this problem into two subproblems by setting (x + 0.2333333334) equal to 1.804007884 and -1.804007884.Subproblem 1
x + 0.2333333334 = 1.804007884 Simplifying x + 0.2333333334 = 1.804007884 Reorder the terms: 0.2333333334 + x = 1.804007884 Solving 0.2333333334 + x = 1.804007884 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2333333334' to each side of the equation. 0.2333333334 + -0.2333333334 + x = 1.804007884 + -0.2333333334 Combine like terms: 0.2333333334 + -0.2333333334 = 0.0000000000 0.0000000000 + x = 1.804007884 + -0.2333333334 x = 1.804007884 + -0.2333333334 Combine like terms: 1.804007884 + -0.2333333334 = 1.5706745506 x = 1.5706745506 Simplifying x = 1.5706745506Subproblem 2
x + 0.2333333334 = -1.804007884 Simplifying x + 0.2333333334 = -1.804007884 Reorder the terms: 0.2333333334 + x = -1.804007884 Solving 0.2333333334 + x = -1.804007884 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2333333334' to each side of the equation. 0.2333333334 + -0.2333333334 + x = -1.804007884 + -0.2333333334 Combine like terms: 0.2333333334 + -0.2333333334 = 0.0000000000 0.0000000000 + x = -1.804007884 + -0.2333333334 x = -1.804007884 + -0.2333333334 Combine like terms: -1.804007884 + -0.2333333334 = -2.0373412174 x = -2.0373412174 Simplifying x = -2.0373412174Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.5706745506, -2.0373412174}
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