# NCERT Class 9 Solutions: Polynomials (Chapter 2) Exercise 2.5 – Part 2

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**Q-4** Expand each of the following using suitable identities:

Solution:

Using identify

Here

Using identify

Here

Using identify

Here

Using identify

Here

Using identify

Here

Using identify

Here

**Q-5** Factorize:

Solution:

Using identify

Using identify

**Q-6** Write the following cubes in expanded form:

Solution:

Using identify

Using identify

Using identify

Using identify

**Q-7** Evaluate the following using suitable identities:

Solution:

Using identity

Using identity

Using identity

**Q-8** Factorize each of the following:

Solution: