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Simplifying 2x2 + 20x + 37 = 0 Reorder the terms: 37 + 20x + 2x2 = 0 Solving 37 + 20x + 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'. 18.5 + 10x + x2 = 0 Move the constant term to the right: Add '-18.5' to each side of the equation. 18.5 + 10x + -18.5 + x2 = 0 + -18.5 Reorder the terms: 18.5 + -18.5 + 10x + x2 = 0 + -18.5 Combine like terms: 18.5 + -18.5 = 0.0 0.0 + 10x + x2 = 0 + -18.5 10x + x2 = 0 + -18.5 Combine like terms: 0 + -18.5 = -18.5 10x + x2 = -18.5 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = -18.5 + 25 Reorder the terms: 25 + 10x + x2 = -18.5 + 25 Combine like terms: -18.5 + 25 = 6.5 25 + 10x + x2 = 6.5 Factor a perfect square on the left side: (x + 5)(x + 5) = 6.5 Calculate the square root of the right side: 2.549509757 Break this problem into two subproblems by setting (x + 5) equal to 2.549509757 and -2.549509757.Subproblem 1
x + 5 = 2.549509757 Simplifying x + 5 = 2.549509757 Reorder the terms: 5 + x = 2.549509757 Solving 5 + x = 2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 2.549509757 + -5 Combine like terms: 5 + -5 = 0 0 + x = 2.549509757 + -5 x = 2.549509757 + -5 Combine like terms: 2.549509757 + -5 = -2.450490243 x = -2.450490243 Simplifying x = -2.450490243Subproblem 2
x + 5 = -2.549509757 Simplifying x + 5 = -2.549509757 Reorder the terms: 5 + x = -2.549509757 Solving 5 + x = -2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -2.549509757 + -5 Combine like terms: 5 + -5 = 0 0 + x = -2.549509757 + -5 x = -2.549509757 + -5 Combine like terms: -2.549509757 + -5 = -7.549509757 x = -7.549509757 Simplifying x = -7.549509757Solution
The solution to the problem is based on the solutions from the subproblems. x = {-2.450490243, -7.549509757}
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