Question

f(x)=2-x and g(x)=2x^2+x+9
(f(g))(x) , (g(f))(x) and (f(g))(3)

Answer 1

hey aditya can you help?

Answer 2

(f(g))(x)=2-(2x^2+x+9)
=2-2x^2-x-9
=-2x^2-x-7
(f(g))(3)=-2*3*3-3-7
=-18-10
=-28
(g(f))(x)=2(2-x)^2+(2-x)-7
=2(4-4x+x^2)+2-x-7
=8-8x+2x^2-x-5
=2x^2-9x+3