CBSECBSE Class 8
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Find the Product (X + 7y) (7x − Y) - Mathematics

Find the product (x + 7y) (7x − y)

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Solution

(x + 7y) (7x − y) = x (7x − y) + 7y (7x − y)

= 7x2 − xy + 49xy − 7y2

= 7x2 + 48xy − 7y2

Concept: Multiplication of Algebraic Expressions - Multiplying a Binomial by a Binomial
  Is there an error in this question or solution?
Chapter 9: Algebraic Expressions and Identities - Exercise 9.4 [Page 148]
Q 2.2
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APPEARS IN

NCERT Class 8 Maths Textbook
Chapter 9 Algebraic Expressions and Identities
Exercise 9.4 | Q 2.2 | Page 148
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