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Simplifying b2 + 4b + 77 = 0 Reorder the terms: 77 + 4b + b2 = 0 Solving 77 + 4b + b2 = 0 Solving for variable 'b'. Begin completing the square. Move the constant term to the right: Add '-77' to each side of the equation. 77 + 4b + -77 + b2 = 0 + -77 Reorder the terms: 77 + -77 + 4b + b2 = 0 + -77 Combine like terms: 77 + -77 = 0 0 + 4b + b2 = 0 + -77 4b + b2 = 0 + -77 Combine like terms: 0 + -77 = -77 4b + b2 = -77 The b term is 4b. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4b + 4 + b2 = -77 + 4 Reorder the terms: 4 + 4b + b2 = -77 + 4 Combine like terms: -77 + 4 = -73 4 + 4b + b2 = -73 Factor a perfect square on the left side: (b + 2)(b + 2) = -73 Can't calculate square root of the right side. The solution to this equation could not be determined.
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