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Simplifying 16x2 + 3x + -4 = 0 Reorder the terms: -4 + 3x + 16x2 = 0 Solving -4 + 3x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.25 + 0.1875x + x2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + 0.1875x + 0.25 + x2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + 0.1875x + x2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + 0.1875x + x2 = 0 + 0.25 0.1875x + x2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 0.1875x + x2 = 0.25 The x term is 0.1875x. Take half its coefficient (0.09375). Square it (0.0087890625) and add it to both sides. Add '0.0087890625' to each side of the equation. 0.1875x + 0.0087890625 + x2 = 0.25 + 0.0087890625 Reorder the terms: 0.0087890625 + 0.1875x + x2 = 0.25 + 0.0087890625 Combine like terms: 0.25 + 0.0087890625 = 0.2587890625 0.0087890625 + 0.1875x + x2 = 0.2587890625 Factor a perfect square on the left side: (x + 0.09375)(x + 0.09375) = 0.2587890625 Calculate the square root of the right side: 0.508713144 Break this problem into two subproblems by setting (x + 0.09375) equal to 0.508713144 and -0.508713144.Subproblem 1
x + 0.09375 = 0.508713144 Simplifying x + 0.09375 = 0.508713144 Reorder the terms: 0.09375 + x = 0.508713144 Solving 0.09375 + x = 0.508713144 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.09375' to each side of the equation. 0.09375 + -0.09375 + x = 0.508713144 + -0.09375 Combine like terms: 0.09375 + -0.09375 = 0.00000 0.00000 + x = 0.508713144 + -0.09375 x = 0.508713144 + -0.09375 Combine like terms: 0.508713144 + -0.09375 = 0.414963144 x = 0.414963144 Simplifying x = 0.414963144Subproblem 2
x + 0.09375 = -0.508713144 Simplifying x + 0.09375 = -0.508713144 Reorder the terms: 0.09375 + x = -0.508713144 Solving 0.09375 + x = -0.508713144 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.09375' to each side of the equation. 0.09375 + -0.09375 + x = -0.508713144 + -0.09375 Combine like terms: 0.09375 + -0.09375 = 0.00000 0.00000 + x = -0.508713144 + -0.09375 x = -0.508713144 + -0.09375 Combine like terms: -0.508713144 + -0.09375 = -0.602463144 x = -0.602463144 Simplifying x = -0.602463144Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.414963144, -0.602463144}
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