Question

Find (f*f)(x)?

Answer 1

(f o f)(x) meaning replace x by x in f(x) function and then substitute f(x) for f(x)
so when u substitute x you will get same equation
f(x) = x^2+ 4
now replace x by (x^4+4) \[\huge\rm f(x^2+4)= (x^2+4)^2 +4\]
^ solve this

Answer 2

hmm weird q "x">.<

Answer 3

@Nnesha got it, it was A. cheers.

Answer 4

correction (x^2+4)
ohh great

Answer 5

Did I just read it as:_
F*ck off ex ??

Answer 6

uhhhh ?? ?>.<