Answer:
degree 6
Step-by-step explanation:
To obtain (f ￮ g(x) substitute x = g(x) into f(x)
f(4x³ + 1)
= 3(4x³ + 1)²
= 3(16[tex]x^{6}[/tex] + 8x³ + 1)
= 48[tex]x^{6}[/tex] + 24x³ + 3
The degree is determined by the term with the largest exponent.
In this case 48[tex]x^{6}[/tex] ← with exponent 6
Hence the polynomial is of degree 6
