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Alina [70]
2 years ago
12

99 POINTS!!! Find the least common denominator for these two rational expressions b/b^2+2b+1 -6/b^2+7b+6

Mathematics
2 answers:
ki77a [65]2 years ago
5 0

Answer:

49b^2 -36 = (7b -6)(7b +6)

so because there you missed some signs in these wrote choices  

hope helped  

Step-by-step explanation:

Zina [86]2 years ago
4 0

Answer:

(b+1)^2(b+6)

Step-by-step explanation:

The given rational expression is:

\frac{b}{b^2+2b+1}-\frac{6}{b^2+7b+6}

We factor the denominators to get:

\frac{b}{(b+1)^2}-\frac{6}{(b+1)(b+6)}

The least common denominator is the product of the highest powers of the common factors of the denominators.

Therefore the least common denominator is:

(b+1)^2(b+6)

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