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Simplifying 2x2 + -6x + -625 = 0 Reorder the terms: -625 + -6x + 2x2 = 0 Solving -625 + -6x + 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'. -312.5 + -3x + x2 = 0 Move the constant term to the right: Add '312.5' to each side of the equation. -312.5 + -3x + 312.5 + x2 = 0 + 312.5 Reorder the terms: -312.5 + 312.5 + -3x + x2 = 0 + 312.5 Combine like terms: -312.5 + 312.5 = 0.0 0.0 + -3x + x2 = 0 + 312.5 -3x + x2 = 0 + 312.5 Combine like terms: 0 + 312.5 = 312.5 -3x + x2 = 312.5 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 312.5 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 312.5 + 2.25 Combine like terms: 312.5 + 2.25 = 314.75 2.25 + -3x + x2 = 314.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 314.75 Calculate the square root of the right side: 17.741194999 Break this problem into two subproblems by setting (x + -1.5) equal to 17.741194999 and -17.741194999.Subproblem 1
x + -1.5 = 17.741194999 Simplifying x + -1.5 = 17.741194999 Reorder the terms: -1.5 + x = 17.741194999 Solving -1.5 + x = 17.741194999 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 17.741194999 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 17.741194999 + 1.5 x = 17.741194999 + 1.5 Combine like terms: 17.741194999 + 1.5 = 19.241194999 x = 19.241194999 Simplifying x = 19.241194999Subproblem 2
x + -1.5 = -17.741194999 Simplifying x + -1.5 = -17.741194999 Reorder the terms: -1.5 + x = -17.741194999 Solving -1.5 + x = -17.741194999 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -17.741194999 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -17.741194999 + 1.5 x = -17.741194999 + 1.5 Combine like terms: -17.741194999 + 1.5 = -16.241194999 x = -16.241194999 Simplifying x = -16.241194999Solution
The solution to the problem is based on the solutions from the subproblems. x = {19.241194999, -16.241194999}
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