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Simplifying 2x2 + 18x + 35 = 0 Reorder the terms: 35 + 18x + 2x2 = 0 Solving 35 + 18x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 17.5 + 9x + x2 = 0 Move the constant term to the right: Add '-17.5' to each side of the equation. 17.5 + 9x + -17.5 + x2 = 0 + -17.5 Reorder the terms: 17.5 + -17.5 + 9x + x2 = 0 + -17.5 Combine like terms: 17.5 + -17.5 = 0.0 0.0 + 9x + x2 = 0 + -17.5 9x + x2 = 0 + -17.5 Combine like terms: 0 + -17.5 = -17.5 9x + x2 = -17.5 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = -17.5 + 20.25 Reorder the terms: 20.25 + 9x + x2 = -17.5 + 20.25 Combine like terms: -17.5 + 20.25 = 2.75 20.25 + 9x + x2 = 2.75 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 2.75 Calculate the square root of the right side: 1.658312395 Break this problem into two subproblems by setting (x + 4.5) equal to 1.658312395 and -1.658312395.Subproblem 1
x + 4.5 = 1.658312395 Simplifying x + 4.5 = 1.658312395 Reorder the terms: 4.5 + x = 1.658312395 Solving 4.5 + x = 1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 1.658312395 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 1.658312395 + -4.5 x = 1.658312395 + -4.5 Combine like terms: 1.658312395 + -4.5 = -2.841687605 x = -2.841687605 Simplifying x = -2.841687605Subproblem 2
x + 4.5 = -1.658312395 Simplifying x + 4.5 = -1.658312395 Reorder the terms: 4.5 + x = -1.658312395 Solving 4.5 + x = -1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -1.658312395 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -1.658312395 + -4.5 x = -1.658312395 + -4.5 Combine like terms: -1.658312395 + -4.5 = -6.158312395 x = -6.158312395 Simplifying x = -6.158312395Solution
The solution to the problem is based on the solutions from the subproblems. x = {-2.841687605, -6.158312395}
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