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Simplifying 4b2 + -7b + 13 = 0 Reorder the terms: 13 + -7b + 4b2 = 0 Solving 13 + -7b + 4b2 = 0 Solving for variable 'b'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 3.25 + -1.75b + b2 = 0 Move the constant term to the right: Add '-3.25' to each side of the equation. 3.25 + -1.75b + -3.25 + b2 = 0 + -3.25 Reorder the terms: 3.25 + -3.25 + -1.75b + b2 = 0 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + -1.75b + b2 = 0 + -3.25 -1.75b + b2 = 0 + -3.25 Combine like terms: 0 + -3.25 = -3.25 -1.75b + b2 = -3.25 The b term is -1.75b. Take half its coefficient (-0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. -1.75b + 0.765625 + b2 = -3.25 + 0.765625 Reorder the terms: 0.765625 + -1.75b + b2 = -3.25 + 0.765625 Combine like terms: -3.25 + 0.765625 = -2.484375 0.765625 + -1.75b + b2 = -2.484375 Factor a perfect square on the left side: (b + -0.875)(b + -0.875) = -2.484375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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