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Simplifying 4x2 + -3x + -69 = 0 Reorder the terms: -69 + -3x + 4x2 = 0 Solving -69 + -3x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -17.25 + -0.75x + x2 = 0 Move the constant term to the right: Add '17.25' to each side of the equation. -17.25 + -0.75x + 17.25 + x2 = 0 + 17.25 Reorder the terms: -17.25 + 17.25 + -0.75x + x2 = 0 + 17.25 Combine like terms: -17.25 + 17.25 = 0.00 0.00 + -0.75x + x2 = 0 + 17.25 -0.75x + x2 = 0 + 17.25 Combine like terms: 0 + 17.25 = 17.25 -0.75x + x2 = 17.25 The x term is -0.75x. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75x + 0.140625 + x2 = 17.25 + 0.140625 Reorder the terms: 0.140625 + -0.75x + x2 = 17.25 + 0.140625 Combine like terms: 17.25 + 0.140625 = 17.390625 0.140625 + -0.75x + x2 = 17.390625 Factor a perfect square on the left side: (x + -0.375)(x + -0.375) = 17.390625 Calculate the square root of the right side: 4.170206829 Break this problem into two subproblems by setting (x + -0.375) equal to 4.170206829 and -4.170206829.Subproblem 1
x + -0.375 = 4.170206829 Simplifying x + -0.375 = 4.170206829 Reorder the terms: -0.375 + x = 4.170206829 Solving -0.375 + x = 4.170206829 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + x = 4.170206829 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + x = 4.170206829 + 0.375 x = 4.170206829 + 0.375 Combine like terms: 4.170206829 + 0.375 = 4.545206829 x = 4.545206829 Simplifying x = 4.545206829Subproblem 2
x + -0.375 = -4.170206829 Simplifying x + -0.375 = -4.170206829 Reorder the terms: -0.375 + x = -4.170206829 Solving -0.375 + x = -4.170206829 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + x = -4.170206829 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + x = -4.170206829 + 0.375 x = -4.170206829 + 0.375 Combine like terms: -4.170206829 + 0.375 = -3.795206829 x = -3.795206829 Simplifying x = -3.795206829Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.545206829, -3.795206829}
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