question is in picture?

Answer:
Note the picture incorrectly asks for the values of x instead of the values for y
Just put in these numbers in the box
[tex]\boxed{\:7\:}[/tex]
or
[tex]\boxed{\:-5\:}[/tex]
Step-by-step explanation:
We are given the factored form of the quadratic expression as (y-7)(y+5)
So
[tex]y^2 - 2y - 35 = 0\\\\becomes\\(y - 7)(y+5) = 0\\\\\implies y - 7 = 0 or y+5 = 0\\\\y - 7 = 0 \implies y = 7\\y + 5 = 0 \implies y = -5\\[/tex]