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Simplifying 4x2 + -17x = 18 Reorder the terms: -17x + 4x2 = 18 Solving -17x + 4x2 = 18 Solving for variable 'x'. Reorder the terms: -18 + -17x + 4x2 = 18 + -18 Combine like terms: 18 + -18 = 0 -18 + -17x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -4.5 + -4.25x + x2 = 0 Move the constant term to the right: Add '4.5' to each side of the equation. -4.5 + -4.25x + 4.5 + x2 = 0 + 4.5 Reorder the terms: -4.5 + 4.5 + -4.25x + x2 = 0 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + -4.25x + x2 = 0 + 4.5 -4.25x + x2 = 0 + 4.5 Combine like terms: 0 + 4.5 = 4.5 -4.25x + x2 = 4.5 The x term is -4.25x. Take half its coefficient (-2.125). Square it (4.515625) and add it to both sides. Add '4.515625' to each side of the equation. -4.25x + 4.515625 + x2 = 4.5 + 4.515625 Reorder the terms: 4.515625 + -4.25x + x2 = 4.5 + 4.515625 Combine like terms: 4.5 + 4.515625 = 9.015625 4.515625 + -4.25x + x2 = 9.015625 Factor a perfect square on the left side: (x + -2.125)(x + -2.125) = 9.015625 Calculate the square root of the right side: 3.002603037 Break this problem into two subproblems by setting (x + -2.125) equal to 3.002603037 and -3.002603037.Subproblem 1
x + -2.125 = 3.002603037 Simplifying x + -2.125 = 3.002603037 Reorder the terms: -2.125 + x = 3.002603037 Solving -2.125 + x = 3.002603037 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = 3.002603037 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 3.002603037 + 2.125 x = 3.002603037 + 2.125 Combine like terms: 3.002603037 + 2.125 = 5.127603037 x = 5.127603037 Simplifying x = 5.127603037Subproblem 2
x + -2.125 = -3.002603037 Simplifying x + -2.125 = -3.002603037 Reorder the terms: -2.125 + x = -3.002603037 Solving -2.125 + x = -3.002603037 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = -3.002603037 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -3.002603037 + 2.125 x = -3.002603037 + 2.125 Combine like terms: -3.002603037 + 2.125 = -0.877603037 x = -0.877603037 Simplifying x = -0.877603037Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.127603037, -0.877603037}
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