



 
Hi Susan, Let me illustrate with a different polynomial, Q(x) = 4x  4/3 x^{2} + 3 x^{5} + x^{4}  12. Writing the polynomial in descending order means in order of decreasing powers. The highest power of x in this polynomial is x^{5} so I start with the x^{5} term and then the x^{4} term then the x^{3} term and so on. Thus I get
The leading term is the term with the highest power of x so it's 3 x^{5}. The leading coefficient is the coefficient of the leading term so it's 3. I hope this helps,  


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