For f(x)=3x+6 and g(x)=6x^2, find (fg)(x) and state its domain

Answer 1

For f(x)=3x+6 and g(x)=6x^2, find (fg)(x) and state its domain

(fg)(x)=f(g(x))

=f(6x² )

= 3(6x² ) + 6

= 18x² +6

domain is all real number