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Simplifying x2 + 10x + -73 = 0 Reorder the terms: -73 + 10x + x2 = 0 Solving -73 + 10x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '73' to each side of the equation. -73 + 10x + 73 + x2 = 0 + 73 Reorder the terms: -73 + 73 + 10x + x2 = 0 + 73 Combine like terms: -73 + 73 = 0 0 + 10x + x2 = 0 + 73 10x + x2 = 0 + 73 Combine like terms: 0 + 73 = 73 10x + x2 = 73 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 = 73 + 25 Reorder the terms: 25 + 10x + x2 = 73 + 25 Combine like terms: 73 + 25 = 98 25 + 10x + x2 = 98 Factor a perfect square on the left side: (x + 5)(x + 5) = 98 Calculate the square root of the right side: 9.899494937 Break this problem into two subproblems by setting (x + 5) equal to 9.899494937 and -9.899494937.Subproblem 1
x + 5 = 9.899494937 Simplifying x + 5 = 9.899494937 Reorder the terms: 5 + x = 9.899494937 Solving 5 + x = 9.899494937 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 = 9.899494937 + -5 Combine like terms: 5 + -5 = 0 0 + x = 9.899494937 + -5 x = 9.899494937 + -5 Combine like terms: 9.899494937 + -5 = 4.899494937 x = 4.899494937 Simplifying x = 4.899494937Subproblem 2
x + 5 = -9.899494937 Simplifying x + 5 = -9.899494937 Reorder the terms: 5 + x = -9.899494937 Solving 5 + x = -9.899494937 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 = -9.899494937 + -5 Combine like terms: 5 + -5 = 0 0 + x = -9.899494937 + -5 x = -9.899494937 + -5 Combine like terms: -9.899494937 + -5 = -14.899494937 x = -14.899494937 Simplifying x = -14.899494937Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.899494937, -14.899494937}
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