# NCERT Class 9 Mathematics Solutions: Chapter 9 – Algebraic Expressions and Identities Exercise 9.2 Part 1 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 1**: Find the product of the following pairs of monomials:

(i)

(ii)

(iii)

(iv)

(v)

**Answer**:

As per exponent “product rule” when multiplying two powers that have the same base add the exponents.

(i)

(ii)

(iii)

(iv)

(v)

**Question 2**: Find the areas of rectangles with the following pairs of monomials as their length and breadths respectively:

**Answer**:

As per exponent “product rule” when multiplying two powers that have the same base add the exponents.

**(i)**

Area of rectangle =

**(ii)**

Area of rectangle

**(iii)**

Area of rectangle

**(iv)**

Area of rectangle

**(v)**

Area of rectangle