Answer:
- B. (g . f)(x) = 5x log(5x) + 4log(5x)
Step-by-step explanation:
[tex]\sf (g*f)(x)[/tex]
[tex]\sf f(x)=log(5x)[/tex]
[tex]\sf g(x)=5x+4[/tex]
[tex]\sf (g*f)(x)[/tex]
[tex]\sf =g(x).\:f(x)[/tex]
[tex]\sf =(5x+4)(log5x)[/tex]
[tex]\sf =5x\:log(5x)+4\:log(5x)[/tex]
