NCERT Class 9 Solutions: Polynomials (Chapter 2) Exercise 2.5 – Part 1
Q1 Use suitable identities to find the following products:
Solution:

Using identify

Using identify

Using identify

Using identify

Using identify
Q2 Evaluate the following products without multiplying directly:
Solution:
Q3 Factories the following using appropriate identities:
Solution:

(Applying )

(Applying )

(Applying )