CBSECBSE Class 8
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Use a Suitable Identity to Get the Following Products. (6x − 7) (6x + 7) - Mathematics

Use a suitable identity to get the following products.

(6x − 7) (6x + 7)

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Solution

(6x − 7) (6x + 7) = (6x)2 − (7)2 [(a + b) (a − b) = a2 − b2]

= 36x2 − 49

Concept: Expansion of (a + b)2 = a2 + 2ab + b2
  Is there an error in this question or solution?
Chapter 9: Algebraic Expressions and Identities - Exercise 9.5 [Page 151]
Q 1.07
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NCERT Class 8 Maths Textbook
Chapter 9 Algebraic Expressions and Identities
Exercise 9.5 | Q 1.07 | Page 151
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