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Simplifying 9b2 + 18b + 79 = -10 Reorder the terms: 79 + 18b + 9b2 = -10 Solving 79 + 18b + 9b2 = -10 Solving for variable 'b'. Reorder the terms: 79 + 10 + 18b + 9b2 = -10 + 10 Combine like terms: 79 + 10 = 89 89 + 18b + 9b2 = -10 + 10 Combine like terms: -10 + 10 = 0 89 + 18b + 9b2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 9.888888889 + 2b + b2 = 0 Move the constant term to the right: Add '-9.888888889' to each side of the equation. 9.888888889 + 2b + -9.888888889 + b2 = 0 + -9.888888889 Reorder the terms: 9.888888889 + -9.888888889 + 2b + b2 = 0 + -9.888888889 Combine like terms: 9.888888889 + -9.888888889 = 0.000000000 0.000000000 + 2b + b2 = 0 + -9.888888889 2b + b2 = 0 + -9.888888889 Combine like terms: 0 + -9.888888889 = -9.888888889 2b + b2 = -9.888888889 The b term is 2b. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2b + 1 + b2 = -9.888888889 + 1 Reorder the terms: 1 + 2b + b2 = -9.888888889 + 1 Combine like terms: -9.888888889 + 1 = -8.888888889 1 + 2b + b2 = -8.888888889 Factor a perfect square on the left side: (b + 1)(b + 1) = -8.888888889 Can't calculate square root of the right side. The solution to this equation could not be determined.
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