Question

Subtract and simplify.

Answer 1

`(y^2-7y-5)-(-3y^2+3y-4)`

`=y^2-7y-5+3y^2-3y+4`

`=3y^2+y^2-7y-3y-5+4`

`=4y^2-10y-1`

In short, the answer would be
`4y^2-10y-1` (Option D).

Hope this helps !

Photon