Question

If f(x)= 4^-8 and g(x)= 5x+6, find (f-g)(x)

Answer 1

$f(x)=4^x-8,\ g(x)=5x+6\\\\(f-g)(x)=f(x)-g(x)=(4^x-8)-(5x+6)=4^x-8-5x-6=4^x-5x-14$