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Simplifying b2 + 3b + 20 = 0 Reorder the terms: 20 + 3b + b2 = 0 Solving 20 + 3b + b2 = 0 Solving for variable 'b'. Begin completing the square. Move the constant term to the right: Add '-20' to each side of the equation. 20 + 3b + -20 + b2 = 0 + -20 Reorder the terms: 20 + -20 + 3b + b2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 3b + b2 = 0 + -20 3b + b2 = 0 + -20 Combine like terms: 0 + -20 = -20 3b + b2 = -20 The b term is 3b. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3b + 2.25 + b2 = -20 + 2.25 Reorder the terms: 2.25 + 3b + b2 = -20 + 2.25 Combine like terms: -20 + 2.25 = -17.75 2.25 + 3b + b2 = -17.75 Factor a perfect square on the left side: (b + 1.5)(b + 1.5) = -17.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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