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Question
Factorise the following expression.
l2m2n – lm2n2 – l2mn2
Sum
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Solution
We have,
l2m2n – lm2n2 – l2mn2
= lmn × lm – lmn × mn – lmn × ln
= lmn(lm – mn – ln)
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Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 233]
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