Answer:
Leading coefficient of the polynomial f(x) is 1
Step-by-step explanation:[tex]a_1[/tex]
When we have the polynomial of form [tex]a_1 x^n + a_2 x^{n-1} +....a_n[/tex], then the leading term is the term that has the highest degree of x, here it is n. So the leading term is [tex]a_1 x^n[/tex]. Now, the leading coefficient is [tex]a_1[/tex].
Now when we look at the question, we will see that, the leading term is [tex]x^4[/tex] and thus the coefficient of this term is 1, so the leading coefficient is 1 here.