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Simplifying 19x2 + 38x + 1 = 0 Reorder the terms: 1 + 38x + 19x2 = 0 Solving 1 + 38x + 19x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 19 the coefficient of the squared term: Divide each side by '19'. 0.05263157895 + 2x + x2 = 0 Move the constant term to the right: Add '-0.05263157895' to each side of the equation. 0.05263157895 + 2x + -0.05263157895 + x2 = 0 + -0.05263157895 Reorder the terms: 0.05263157895 + -0.05263157895 + 2x + x2 = 0 + -0.05263157895 Combine like terms: 0.05263157895 + -0.05263157895 = 0.00000000000 0.00000000000 + 2x + x2 = 0 + -0.05263157895 2x + x2 = 0 + -0.05263157895 Combine like terms: 0 + -0.05263157895 = -0.05263157895 2x + x2 = -0.05263157895 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 = -0.05263157895 + 1 Reorder the terms: 1 + 2x + x2 = -0.05263157895 + 1 Combine like terms: -0.05263157895 + 1 = 0.94736842105 1 + 2x + x2 = 0.94736842105 Factor a perfect square on the left side: (x + 1)(x + 1) = 0.94736842105 Calculate the square root of the right side: 0.973328527 Break this problem into two subproblems by setting (x + 1) equal to 0.973328527 and -0.973328527.Subproblem 1
x + 1 = 0.973328527 Simplifying x + 1 = 0.973328527 Reorder the terms: 1 + x = 0.973328527 Solving 1 + x = 0.973328527 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 = 0.973328527 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0.973328527 + -1 x = 0.973328527 + -1 Combine like terms: 0.973328527 + -1 = -0.026671473 x = -0.026671473 Simplifying x = -0.026671473Subproblem 2
x + 1 = -0.973328527 Simplifying x + 1 = -0.973328527 Reorder the terms: 1 + x = -0.973328527 Solving 1 + x = -0.973328527 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 = -0.973328527 + -1 Combine like terms: 1 + -1 = 0 0 + x = -0.973328527 + -1 x = -0.973328527 + -1 Combine like terms: -0.973328527 + -1 = -1.973328527 x = -1.973328527 Simplifying x = -1.973328527Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.026671473, -1.973328527}
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