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Simplifying (2x + -9) * 8x = 1 Reorder the terms: (-9 + 2x) * 8x = 1 Reorder the terms for easier multiplication: 8x(-9 + 2x) = 1 (-9 * 8x + 2x * 8x) = 1 (-72x + 16x2) = 1 Solving -72x + 16x2 = 1 Solving for variable 'x'. Reorder the terms: -1 + -72x + 16x2 = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + -72x + 16x2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.0625 + -4.5x + x2 = 0 Move the constant term to the right: Add '0.0625' to each side of the equation. -0.0625 + -4.5x + 0.0625 + x2 = 0 + 0.0625 Reorder the terms: -0.0625 + 0.0625 + -4.5x + x2 = 0 + 0.0625 Combine like terms: -0.0625 + 0.0625 = 0.0000 0.0000 + -4.5x + x2 = 0 + 0.0625 -4.5x + x2 = 0 + 0.0625 Combine like terms: 0 + 0.0625 = 0.0625 -4.5x + x2 = 0.0625 The x term is -4.5x. Take half its coefficient (-2.25). Square it (5.0625) and add it to both sides. Add '5.0625' to each side of the equation. -4.5x + 5.0625 + x2 = 0.0625 + 5.0625 Reorder the terms: 5.0625 + -4.5x + x2 = 0.0625 + 5.0625 Combine like terms: 0.0625 + 5.0625 = 5.125 5.0625 + -4.5x + x2 = 5.125 Factor a perfect square on the left side: (x + -2.25)(x + -2.25) = 5.125 Calculate the square root of the right side: 2.263846285 Break this problem into two subproblems by setting (x + -2.25) equal to 2.263846285 and -2.263846285.Subproblem 1
x + -2.25 = 2.263846285 Simplifying x + -2.25 = 2.263846285 Reorder the terms: -2.25 + x = 2.263846285 Solving -2.25 + x = 2.263846285 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = 2.263846285 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = 2.263846285 + 2.25 x = 2.263846285 + 2.25 Combine like terms: 2.263846285 + 2.25 = 4.513846285 x = 4.513846285 Simplifying x = 4.513846285Subproblem 2
x + -2.25 = -2.263846285 Simplifying x + -2.25 = -2.263846285 Reorder the terms: -2.25 + x = -2.263846285 Solving -2.25 + x = -2.263846285 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = -2.263846285 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = -2.263846285 + 2.25 x = -2.263846285 + 2.25 Combine like terms: -2.263846285 + 2.25 = -0.013846285 x = -0.013846285 Simplifying x = -0.013846285Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.513846285, -0.013846285}
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