Question

factorise n-7+7lm-lmn Plz tell

Answer 1

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Answer 2

hey there !!

N-7+7lm-lmn

=> N-Nlm-7+7lm

=> N(1-lm) -7(1-lm)

=> (N-7)(1-lm)

Hope it helps !!

All the best !!