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Add the Following Algebraic Expression: 3a2b, − 4a2b, 9a2b - Mathematics

Answer in Brief

Add the following algebraic expression:

3a2b, − 4a2b, 9a2b

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Solution

To add the like terms, we proceed as follows:

\[3 a^2 b + \left( - 4 a^2 b \right) + 9 a^2 b\]

\[ = 3 a^2 b - 4 a^2 b + 9 a^2 b\]

\[ = \left( 3 - 4 + 9 \right) a^2 b         (\text { Distributive law }) \]

\[ = 8 a^2 b\]

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APPEARS IN

RD Sharma Class 8 Maths
Chapter 6 Algebraic Expressions and Identities
Exercise 6.2 | Q 1.1 | Page 5
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