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Simplifying x2 + 19x + -12 = 0 Reorder the terms: -12 + 19x + x2 = 0 Solving -12 + 19x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '12' to each side of the equation. -12 + 19x + 12 + x2 = 0 + 12 Reorder the terms: -12 + 12 + 19x + x2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 19x + x2 = 0 + 12 19x + x2 = 0 + 12 Combine like terms: 0 + 12 = 12 19x + x2 = 12 The x term is 19x. Take half its coefficient (9.5). Square it (90.25) and add it to both sides. Add '90.25' to each side of the equation. 19x + 90.25 + x2 = 12 + 90.25 Reorder the terms: 90.25 + 19x + x2 = 12 + 90.25 Combine like terms: 12 + 90.25 = 102.25 90.25 + 19x + x2 = 102.25 Factor a perfect square on the left side: (x + 9.5)(x + 9.5) = 102.25 Calculate the square root of the right side: 10.111874208 Break this problem into two subproblems by setting (x + 9.5) equal to 10.111874208 and -10.111874208.Subproblem 1
x + 9.5 = 10.111874208 Simplifying x + 9.5 = 10.111874208 Reorder the terms: 9.5 + x = 10.111874208 Solving 9.5 + x = 10.111874208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + x = 10.111874208 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + x = 10.111874208 + -9.5 x = 10.111874208 + -9.5 Combine like terms: 10.111874208 + -9.5 = 0.611874208 x = 0.611874208 Simplifying x = 0.611874208Subproblem 2
x + 9.5 = -10.111874208 Simplifying x + 9.5 = -10.111874208 Reorder the terms: 9.5 + x = -10.111874208 Solving 9.5 + x = -10.111874208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + x = -10.111874208 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + x = -10.111874208 + -9.5 x = -10.111874208 + -9.5 Combine like terms: -10.111874208 + -9.5 = -19.611874208 x = -19.611874208 Simplifying x = -19.611874208Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.611874208, -19.611874208}
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