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NCERT Class 9 Mathematics Solutions: Chapter 9 – Algebraic Expressions and Identities Exercise 9.2 Part 1

Illustration: NCERT Class 9 Mathematics Solutions: Chapter 9 – Algebraic Expressions and Identities Exercise 9.2 Part 1

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