Question

HELP
What is the degree of the polynomial 2st4 + s2t2 - 9s5t + 21 ?

2
4
6
21

Answer 1

\[2st^{4} + s ^{2}t ^{2} - 9s ^{5}t\]

Answer 2

http://en.wikipedia.org/wiki/Degree_of_a_polynomial

Answer 3

Wouldnt it be 5 then? but its not in the answers?

Answer 4

wait 6 because 9s^5t^1 right??

Answer 5

As stated on Wikipedia, it is the degree of the term with greatest sum of the powers. In this case, 9 * s^5 * t^1 has a degree of 6 (or 5 + 1). So you're right, the answer is 6!

Answer 6

Great, thank you! Both of you.