Question 1008667
The zeroes of a function mean what are the x-values that make the graph of the function cross the x-axis.  Remember that when a line crosses the x-axis, its y-value is zero.
So we set these functions equal to zero and solve for x.
Here we have
x^2 - 6x - 5 = 2 or
x^2 - 6x - 7 = 0
Now we can factor this and get  (we do this by un-FOILing)
(x - 7)(x + 1) = 0
and thus
x = 7 and x = -1
Does that help?