Respuesta :

You will need to use FOIL for this, or distribute.

So you will multiply -7y and 5y, then -7y and 3
Multiply 2 and 5y, then 2 and 3
You will get: -35y²-21+10y+6

Combine like terms:
-35y²+10y-15

There you go!
-35y^2-21y+10y+6
So -35y^2-11y+6