Answer:
[tex]1[/tex]
Step-by-step explanation:
The coefficient of a polynomial expression is the coefficient of the term with the highest exponent. We can see that the term with the highest exponent is [tex]x^3[/tex]. So, the leading coefficient is its coefficient which is [tex]1[/tex].
Note that any number can be written as the product of that number and [tex]1[/tex] as multiplying by [tex]1[/tex] does not fundamentally change that number. In our given example, [tex]x^3[/tex] is equivalent to [tex]1x^3[/tex].
