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Simplifying 11r2 + 14r + 104 = 0 Reorder the terms: 104 + 14r + 11r2 = 0 Solving 104 + 14r + 11r2 = 0 Solving for variable 'r'. Begin completing the square. Divide all terms by 11 the coefficient of the squared term: Divide each side by '11'. 9.454545455 + 1.272727273r + r2 = 0 Move the constant term to the right: Add '-9.454545455' to each side of the equation. 9.454545455 + 1.272727273r + -9.454545455 + r2 = 0 + -9.454545455 Reorder the terms: 9.454545455 + -9.454545455 + 1.272727273r + r2 = 0 + -9.454545455 Combine like terms: 9.454545455 + -9.454545455 = 0.000000000 0.000000000 + 1.272727273r + r2 = 0 + -9.454545455 1.272727273r + r2 = 0 + -9.454545455 Combine like terms: 0 + -9.454545455 = -9.454545455 1.272727273r + r2 = -9.454545455 The r term is 1.272727273r. Take half its coefficient (0.6363636365). Square it (0.4049586779) and add it to both sides. Add '0.4049586779' to each side of the equation. 1.272727273r + 0.4049586779 + r2 = -9.454545455 + 0.4049586779 Reorder the terms: 0.4049586779 + 1.272727273r + r2 = -9.454545455 + 0.4049586779 Combine like terms: -9.454545455 + 0.4049586779 = -9.0495867771 0.4049586779 + 1.272727273r + r2 = -9.0495867771 Factor a perfect square on the left side: (r + 0.6363636365)(r + 0.6363636365) = -9.0495867771 Can't calculate square root of the right side. The solution to this equation could not be determined.
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