Classify the following as linear, quadratic and cubic polynomials: .
Step 1: Understand the types of polynomial
Linear Polynomial – A polynomial whose degree is one is called a linear polynomial.
Example: .
Quadratic Polynomial – A polynomial of degree two is called a quadratic polynomial.
Example: and
Cubic Polynomial – A polynomial of degree three is called a cubic polynomial.
Example:
Step 2: Classify the given polynomial whether it is linear, quadratic, or cubic.
Given:
We know that the highest power of the variable in a polynomial is called the degree of the polynomial.
Since the highest power of the variable in a polynomial is .
Therefore the degree of the given polynomial is .
Hence is a quadratic polynomial.