What is (f⋅g)(x)?
f(x)=x^2+2x−6
g(x)=x^4+3
(f⋅g)(x)
= f(x) * g(x)
= (x2 + 2x - 6) * (x4 + 3)
= x6 + 3x2 + 2x5 + 6x - 6x4 - 18
= x6 + 2x5 - 6x4 + 3x2 + 6x - 18