Let f(x) = x2 − 4 and g(x) = 4x − 3, how do you find (f − g)(−6)?

2 Answers
Mar 31, 2018

59

Explanation:

(f-g)(x)=f(x)-g(x). so (f-g)(x)=x^2-4x-1. Plugging in -6, you get that the answer is 59

Mar 31, 2018

(f-g)(-6)=59

Explanation:

(f-g)(-6) = f(-6)-g(-6)

f(-6)=(-6)^2-4
f(-6)=36-4
f(-6)=32

g(-6)=4(-6)-3
g(-6)=-24-3
g(-6)=-27

f(-6)-g(-6)
32-(-27)
32+27
59