# NCERT Class 9 Mathematics Solutions: Chapter 9 – Algebraic Expressions and Identities Exercise 9.2 Part 2

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Question 3: Complete the table of products:

 First monomial Second monomial 2x -5y - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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

 First monomial Second monomial

Question: 4 Obtain the volume rectangular boxes with the following length, breadth and height respectively:

(i)

(ii)

(iii)

(iv)

Volume of rectangular box

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

(i)

Volume of rectangular box

(ii)

Volume of rectangular box

(iii)

Volume of rectangular box

(iv)

Volume of rectangular box

Question: 5 Obtain the product of:

(i)

(ii)

(iii)

(iv)

(v)