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Maharashtra State BoardSSC (English Medium) 7th Standard

Factorise the following expression. xxx2-1x2 - Mathematics

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Question

Factorise the following expression.

`"x"^2-1/"x"^2`

Sum
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Solution

`"x"^2-1/"x"^2`

you known that

a2 − b2 = (a + b) (a − b)

`("x")^2-(1/"x")^2 = ("x"+1/"x")("x"-1/"x")`

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Chapter 14: Algebraic Formulae - Expansion of Squares - Practice Set 53 [Page 94]

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Balbharati Mathematics [English] Standard 7 Maharashtra State Board
Chapter 14 Algebraic Formulae - Expansion of Squares
Practice Set 53 | Q 1.06 | Page 94
Balbharati Mathematics Integrated [English] Standard 7 Maharashtra State Board
Chapter 14 Algebraic Formulae-Expansion of Squares
Practice Set 53 | Q 1. (vi) | Page 44
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