Question 239315
(f-g)(-1)
This is shorthand for f(-1) - g(-1)
{{{f(-1) = (-1)^2 - (-1) -2 = 1 + 1 - 2 = 0}}}
{{{g(-1) = 2(-1) - 7 = -2 - 7 = -9}}}
So (f-g)(-1) = (0) - (-9) = 9