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Simplifying 12x2 + 5x = 4 Reorder the terms: 5x + 12x2 = 4 Solving 5x + 12x2 = 4 Solving for variable 'x'. Reorder the terms: -4 + 5x + 12x2 = 4 + -4 Combine like terms: 4 + -4 = 0 -4 + 5x + 12x2 = 0 Begin completing the square. Divide all terms by 12 the coefficient of the squared term: Divide each side by '12'. -0.3333333333 + 0.4166666667x + x2 = 0 Move the constant term to the right: Add '0.3333333333' to each side of the equation. -0.3333333333 + 0.4166666667x + 0.3333333333 + x2 = 0 + 0.3333333333 Reorder the terms: -0.3333333333 + 0.3333333333 + 0.4166666667x + x2 = 0 + 0.3333333333 Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000 0.0000000000 + 0.4166666667x + x2 = 0 + 0.3333333333 0.4166666667x + x2 = 0 + 0.3333333333 Combine like terms: 0 + 0.3333333333 = 0.3333333333 0.4166666667x + x2 = 0.3333333333 The x term is 0.4166666667x. Take half its coefficient (0.2083333334). Square it (0.04340277781) and add it to both sides. Add '0.04340277781' to each side of the equation. 0.4166666667x + 0.04340277781 + x2 = 0.3333333333 + 0.04340277781 Reorder the terms: 0.04340277781 + 0.4166666667x + x2 = 0.3333333333 + 0.04340277781 Combine like terms: 0.3333333333 + 0.04340277781 = 0.37673611111 0.04340277781 + 0.4166666667x + x2 = 0.37673611111 Factor a perfect square on the left side: (x + 0.2083333334)(x + 0.2083333334) = 0.37673611111 Calculate the square root of the right side: 0.613788328 Break this problem into two subproblems by setting (x + 0.2083333334) equal to 0.613788328 and -0.613788328.Subproblem 1
x + 0.2083333334 = 0.613788328 Simplifying x + 0.2083333334 = 0.613788328 Reorder the terms: 0.2083333334 + x = 0.613788328 Solving 0.2083333334 + x = 0.613788328 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2083333334' to each side of the equation. 0.2083333334 + -0.2083333334 + x = 0.613788328 + -0.2083333334 Combine like terms: 0.2083333334 + -0.2083333334 = 0.0000000000 0.0000000000 + x = 0.613788328 + -0.2083333334 x = 0.613788328 + -0.2083333334 Combine like terms: 0.613788328 + -0.2083333334 = 0.4054549946 x = 0.4054549946 Simplifying x = 0.4054549946Subproblem 2
x + 0.2083333334 = -0.613788328 Simplifying x + 0.2083333334 = -0.613788328 Reorder the terms: 0.2083333334 + x = -0.613788328 Solving 0.2083333334 + x = -0.613788328 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2083333334' to each side of the equation. 0.2083333334 + -0.2083333334 + x = -0.613788328 + -0.2083333334 Combine like terms: 0.2083333334 + -0.2083333334 = 0.0000000000 0.0000000000 + x = -0.613788328 + -0.2083333334 x = -0.613788328 + -0.2083333334 Combine like terms: -0.613788328 + -0.2083333334 = -0.8221216614 x = -0.8221216614 Simplifying x = -0.8221216614Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.4054549946, -0.8221216614}
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