What is the value of $a$?

Source Texts

Text

In the given equation,

a

and

k

are constants, where

k > 4 a

. The sum of the solutions to the equation is

3 k + 35

(x - k)^{2} = (k - 4 a) (x - k)

What is the value of

a

-35/4

-8.75