NCERT Class 9 Mathematics Solutions: Chapter 9 – Algebraic Expressions and Identities Exercise 9.2 Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Algebraic Expression Terms Product Shown in Table

Question 3: Complete the table of products:

Q-3 Table of Products
First monomial

Second monomial

2x-5y
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Answer:

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

Missing Terms of Given Product Table
First monomial

Second monomial

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

(i)

(ii)

(iii)

(iv)

Answer:

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)

Answer:

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

(i)

(ii)

(iii)

(iv)

(v)