SSC (English Medium) Class 8Maharashtra State Board
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Expand ( X + 1 X ) 3 - SSC (English Medium) Class 8 - Mathematics

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Question

Expand

`(x + 1/x)^3`

Solution

`(x + 1/x)^3`

= `(x)^3 + (1/x)^3 + 3 xx (x)^2 xx (1/x) + 3 xx (x) xx (1/x)^2`

= `x^3 + 1/x^3 + 3x + 3/x`

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APPEARS IN

 Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 5: Expansion formulae
Practice Set 5.2 | Q: 6 | Page no. 25
Solution Expand ( X + 1 X ) 3 Concept: Expansion of (A + B)3.
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