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Simplifying x2 + 14x + -98 = 0 Reorder the terms: -98 + 14x + x2 = 0 Solving -98 + 14x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '98' to each side of the equation. -98 + 14x + 98 + x2 = 0 + 98 Reorder the terms: -98 + 98 + 14x + x2 = 0 + 98 Combine like terms: -98 + 98 = 0 0 + 14x + x2 = 0 + 98 14x + x2 = 0 + 98 Combine like terms: 0 + 98 = 98 14x + x2 = 98 The x term is 14x. Take half its coefficient (7). Square it (49) and add it to both sides. Add '49' to each side of the equation. 14x + 49 + x2 = 98 + 49 Reorder the terms: 49 + 14x + x2 = 98 + 49 Combine like terms: 98 + 49 = 147 49 + 14x + x2 = 147 Factor a perfect square on the left side: (x + 7)(x + 7) = 147 Calculate the square root of the right side: 12.124355653 Break this problem into two subproblems by setting (x + 7) equal to 12.124355653 and -12.124355653.Subproblem 1
x + 7 = 12.124355653 Simplifying x + 7 = 12.124355653 Reorder the terms: 7 + x = 12.124355653 Solving 7 + x = 12.124355653 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 12.124355653 + -7 Combine like terms: 7 + -7 = 0 0 + x = 12.124355653 + -7 x = 12.124355653 + -7 Combine like terms: 12.124355653 + -7 = 5.124355653 x = 5.124355653 Simplifying x = 5.124355653Subproblem 2
x + 7 = -12.124355653 Simplifying x + 7 = -12.124355653 Reorder the terms: 7 + x = -12.124355653 Solving 7 + x = -12.124355653 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = -12.124355653 + -7 Combine like terms: 7 + -7 = 0 0 + x = -12.124355653 + -7 x = -12.124355653 + -7 Combine like terms: -12.124355653 + -7 = -19.124355653 x = -19.124355653 Simplifying x = -19.124355653Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.124355653, -19.124355653}
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