Question

given
Exercise 2.1
are
7. Which of the follo
polynomials?
are
(i) (x - 1) (x + 1)​

Answer 1

Answer:

(I) is a polynomial.

Step by step explanation:

• First remember the law (x+a) (x-a) = x² - a²
• Solve it by using the above-mentioned law. You will get x² - 1
• A polynomial's definition: A polynomial is defined as an expression which is composed of variables, constants and exponents, that are combined using the mathematical operations such as addition, subtraction, multiplication and division (No division operation by a variable)
• Thus the given expression is a polynomial.