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:
Answer:
[tex](b+1)^2(b+6)[/tex]
Step-by-step explanation:
The given rational expression is:
[tex]\frac{b}{b^2+2b+1}-\frac{6}{b^2+7b+6}[/tex]
We factor the denominators to get:
[tex]\frac{b}{(b+1)^2}-\frac{6}{(b+1)(b+6)}[/tex]
The least common denominator is the product of the highest powers of the common factors of the denominators.
Therefore the least common denominator is:
[tex](b+1)^2(b+6)[/tex]
