How do you factor 2y^2 + 13 + 21

2

(

y

2

+

17

)

2 (y^2+17)

Step-by-step explanation:

First, add 13 and 21 together.

You'll end up with 2y^2+34

Then, factor out the two from each term, to get 2 (y^2+17).

Since you can factor nothing else out, that will be your answer.