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Simplifying 2b(3b + -4) = 8b + -11 Reorder the terms: 2b(-4 + 3b) = 8b + -11 (-4 * 2b + 3b * 2b) = 8b + -11 (-8b + 6b2) = 8b + -11 Reorder the terms: -8b + 6b2 = -11 + 8b Solving -8b + 6b2 = -11 + 8b Solving for variable 'b'. Reorder the terms: 11 + -8b + -8b + 6b2 = -11 + 8b + 11 + -8b Combine like terms: -8b + -8b = -16b 11 + -16b + 6b2 = -11 + 8b + 11 + -8b Reorder the terms: 11 + -16b + 6b2 = -11 + 11 + 8b + -8b Combine like terms: -11 + 11 = 0 11 + -16b + 6b2 = 0 + 8b + -8b 11 + -16b + 6b2 = 8b + -8b Combine like terms: 8b + -8b = 0 11 + -16b + 6b2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. 1.833333333 + -2.666666667b + b2 = 0 Move the constant term to the right: Add '-1.833333333' to each side of the equation. 1.833333333 + -2.666666667b + -1.833333333 + b2 = 0 + -1.833333333 Reorder the terms: 1.833333333 + -1.833333333 + -2.666666667b + b2 = 0 + -1.833333333 Combine like terms: 1.833333333 + -1.833333333 = 0.000000000 0.000000000 + -2.666666667b + b2 = 0 + -1.833333333 -2.666666667b + b2 = 0 + -1.833333333 Combine like terms: 0 + -1.833333333 = -1.833333333 -2.666666667b + b2 = -1.833333333 The b term is -2.666666667b. Take half its coefficient (-1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. -2.666666667b + 1.777777780 + b2 = -1.833333333 + 1.777777780 Reorder the terms: 1.777777780 + -2.666666667b + b2 = -1.833333333 + 1.777777780 Combine like terms: -1.833333333 + 1.777777780 = -0.055555553 1.777777780 + -2.666666667b + b2 = -0.055555553 Factor a perfect square on the left side: (b + -1.333333334)(b + -1.333333334) = -0.055555553 Can't calculate square root of the right side. The solution to this equation could not be determined.
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