Posted by Anonymous on .
f(x)=x^23 and g(x)=4x+1 to
Evaluate (fg)(3)
Then find (fg)(x)
Thanks a million

college algebra 
Steve,
(fg)(x) = f(x)*g(x) = (x^23)(4x+1) = 4x^3 + x^2  12x  3
(fg)(3) = f(3)g(3) = 6(11) = 17