Classify -7x^5-6x^4+4x^3 by degree and by number of terms

Question

i don't get the question or what to do 

Answer 1

P(x) = -7x⁵ - 6x⁴ + 4x³ 

 

The highest degree is 5 (in -7x⁵), so it is a polynomial of degree 5.  It has 3 nonzero terms, so it is a trinomial.

Answer 2

The degree of the polynomial is the same as the degree of this highest degree term.

Here that therm is -7x⁵. The polynomial is of the 5th degree.

With four terms the polynomial is a quadranomial.