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Question
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2 - y^2/100`
Sum
Solution
We have,
`x^2 - y^2/100 = x^2 - x - (y/10)^2`
= `(x + y/10)(x - y/10)`
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Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 236]
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