Fill in the Blank

An operations analyst at a logistics firm is comparing two shipping efficiency models represented by the rational expressions 3b2βˆ’4bβˆ’5\frac{3}{b^2 - 4b - 5} and 2b2βˆ’6b+5\frac{2}{b^2 - 6b + 5}, where bb represents the baseline fleet size. To find the difference between the two models, the analyst subtracts the expressions by first finding their Least Common Denominator (LCD).

After factoring both trinomial denominators, the analyst determines that the LCD is (bβˆ’5)(b+1)(bβˆ’1)(b - 5)(b + 1)(b - 1). To rewrite the first term, 3b2βˆ’4bβˆ’5\frac{3}{b^2 - 4b - 5}, with the LCD, the analyst must multiply its numerator and denominator by the missing factor ____.

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Updated 2026-06-02

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