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Simplifying 12x2 + 24x + -5 = 0 Reorder the terms: -5 + 24x + 12x2 = 0 Solving -5 + 24x + 12x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 12 the coefficient of the squared term: Divide each side by '12'. -0.4166666667 + 2x + x2 = 0 Move the constant term to the right: Add '0.4166666667' to each side of the equation. -0.4166666667 + 2x + 0.4166666667 + x2 = 0 + 0.4166666667 Reorder the terms: -0.4166666667 + 0.4166666667 + 2x + x2 = 0 + 0.4166666667 Combine like terms: -0.4166666667 + 0.4166666667 = 0.0000000000 0.0000000000 + 2x + x2 = 0 + 0.4166666667 2x + x2 = 0 + 0.4166666667 Combine like terms: 0 + 0.4166666667 = 0.4166666667 2x + x2 = 0.4166666667 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 0.4166666667 + 1 Reorder the terms: 1 + 2x + x2 = 0.4166666667 + 1 Combine like terms: 0.4166666667 + 1 = 1.4166666667 1 + 2x + x2 = 1.4166666667 Factor a perfect square on the left side: (x + 1)(x + 1) = 1.4166666667 Calculate the square root of the right side: 1.190238071 Break this problem into two subproblems by setting (x + 1) equal to 1.190238071 and -1.190238071.Subproblem 1
x + 1 = 1.190238071 Simplifying x + 1 = 1.190238071 Reorder the terms: 1 + x = 1.190238071 Solving 1 + x = 1.190238071 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.190238071 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.190238071 + -1 x = 1.190238071 + -1 Combine like terms: 1.190238071 + -1 = 0.190238071 x = 0.190238071 Simplifying x = 0.190238071Subproblem 2
x + 1 = -1.190238071 Simplifying x + 1 = -1.190238071 Reorder the terms: 1 + x = -1.190238071 Solving 1 + x = -1.190238071 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.190238071 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.190238071 + -1 x = -1.190238071 + -1 Combine like terms: -1.190238071 + -1 = -2.190238071 x = -2.190238071 Simplifying x = -2.190238071Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.190238071, -2.190238071}
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