Use the following functions to solve. f(x) = x2 + x + 1; g(x) = 5 - 2x; h(x) = -x2 Solve. (gh)(3)?

Question

help me please please help me

Answer 1

hm..means your f(x) is useless in this question?
well,

gh(3)
=g[h(3)]
=g[-(3)^2]
=g[-9]
=5-2(-9)
=5+18
=23

Answer 2

g.h=-5x^2+2x^3
(gh)(3)= 5. 9+2.8
=45+16
=61
why did you give f(x) ?

(goh)(3)
=g[h(3)]
=g[-9]
=5+18
=23