Question

Write the degree of each of the following polynomials:

(i) 5x³ + 4x² + 7x

(ii) 4 - y²

Answer 1

Degree of a polynomial is the highest power of the variable in the polynomial.

(i) 5x³ + 4x² + 7x

This is a polynomial in variable x and the highest power of variable x is 3. Therefore, the degree of this polynomial is 3.

(ii) 4 - y²

This is a polynomial in variable y and the highest power of variable y is 2. Therefore, the degree of this polynomial is 2.