Question

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

Answer 1

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

so because there you missed some signs in these wrote choices

hope helped

Explanation:

Answer 2

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

Explanation:

The given rational expression is:

`(b)/(b^2+2b+1)-(6)/(b^2+7b+6)`

We factor the denominators to get:

`(b)/((b+1)^2)-(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)`