Question

[3.07] Choose the correct procedure for calculating (f − g)(−2) if f(x) = 13x2 and g(x) = 7x − 5.

Answer 1

find f(x) - g(x) and plug in -2

Answer 2

(f-g)(-2)=f(-2)-g(-2)
=13(-2)^2-7(-2)-5
=52+14-5
=61

Answer 3

Thanks and all you did was change the x's to 2