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Simplifying 4x2 + 35x + 63 = 0 Reorder the terms: 63 + 35x + 4x2 = 0 Solving 63 + 35x + 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'. 15.75 + 8.75x + x2 = 0 Move the constant term to the right: Add '-15.75' to each side of the equation. 15.75 + 8.75x + -15.75 + x2 = 0 + -15.75 Reorder the terms: 15.75 + -15.75 + 8.75x + x2 = 0 + -15.75 Combine like terms: 15.75 + -15.75 = 0.00 0.00 + 8.75x + x2 = 0 + -15.75 8.75x + x2 = 0 + -15.75 Combine like terms: 0 + -15.75 = -15.75 8.75x + x2 = -15.75 The x term is 8.75x. Take half its coefficient (4.375). Square it (19.140625) and add it to both sides. Add '19.140625' to each side of the equation. 8.75x + 19.140625 + x2 = -15.75 + 19.140625 Reorder the terms: 19.140625 + 8.75x + x2 = -15.75 + 19.140625 Combine like terms: -15.75 + 19.140625 = 3.390625 19.140625 + 8.75x + x2 = 3.390625 Factor a perfect square on the left side: (x + 4.375)(x + 4.375) = 3.390625 Calculate the square root of the right side: 1.841364983 Break this problem into two subproblems by setting (x + 4.375) equal to 1.841364983 and -1.841364983.Subproblem 1
x + 4.375 = 1.841364983 Simplifying x + 4.375 = 1.841364983 Reorder the terms: 4.375 + x = 1.841364983 Solving 4.375 + x = 1.841364983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.375' to each side of the equation. 4.375 + -4.375 + x = 1.841364983 + -4.375 Combine like terms: 4.375 + -4.375 = 0.000 0.000 + x = 1.841364983 + -4.375 x = 1.841364983 + -4.375 Combine like terms: 1.841364983 + -4.375 = -2.533635017 x = -2.533635017 Simplifying x = -2.533635017Subproblem 2
x + 4.375 = -1.841364983 Simplifying x + 4.375 = -1.841364983 Reorder the terms: 4.375 + x = -1.841364983 Solving 4.375 + x = -1.841364983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.375' to each side of the equation. 4.375 + -4.375 + x = -1.841364983 + -4.375 Combine like terms: 4.375 + -4.375 = 0.000 0.000 + x = -1.841364983 + -4.375 x = -1.841364983 + -4.375 Combine like terms: -1.841364983 + -4.375 = -6.216364983 x = -6.216364983 Simplifying x = -6.216364983Solution
The solution to the problem is based on the solutions from the subproblems. x = {-2.533635017, -6.216364983}
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