Question

Pleaasee helppp
Let f and g be two functions defined by
f(x)=x+5
g(x)=(x-1)(x+3)
for any real number x .
Find f/g(-4) and then find all values that are NOT in the domain of f/g(-4)

Answer 1

f(x)=x+5
g(x)=(x-1)(x+3) ; g(x)=x^2+3x-x-3; g(x)=x^2+2x-3

Answer 2

You know how to foil, right?

Answer 3

yes

Answer 4

f(4)=(4)+5
g(4)=(4)^2+2(4)-3

f(4)=9
g(4)=21.

9/21=(3/7)

Answer 5

(x+5)/(x^2+2x-3) The domain is all real numbers except x=-3, and x=1

Answer 6

Using x=-3 or x=1 will give you undefined

Answer 7

oh okkaay thank you!