Question

Four polynomials are shown below:

A. 3 - 7x^5 + x^2
B. 5x^3 + 5 - 3x
C. 3x + 2x^3 - x^2 + 6 + 2x
D. 3x^3 - 5 + 2x^5 + x + 2x^2

Which of the above polynomials is a 5th degree trinomial?

Polynomial A

Polynomial B

Polynomial C

Polynomial D

Answer 1

To find the degree of a polynomial, all you need to do is look for the greatest exponent in the polynomial. In this case, there are two 5th degree polynomials, the first one and the last one. This is because the greatest exponent on both of them is 5.