Final answer:
To find the sum of the expressions, you need to find a common denominator and then combine the two expressions. The final result will be (5y^2 + 20y + 20)/(y^2+7y+10)(y+2).
Step-by-step explanation:
To find the sum of the given expressions, 3y/y^2+7y+10 + 2/y+2, we need to first find a common denominator.
The common denominator for the two expressions is (y^2+7y+10)(y+2).
Next, we can add the two expressions together, keeping the common denominator:
(3y(y+2) + 2(y^2+7y+10))/(y^2+7y+10)(y+2).
We can further simplify the numerator by distributing and combining like terms:
((3y^2 + 6y) + (2y^2 + 14y + 20))/(y^2+7y+10)(y+2).
Combining like terms again, we get:
(5y^2 + 20y + 20)/(y^2+7y+10)(y+2).