Question

81-m² factorise

please answer


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Answer 1

Answer:

81-m²= (9+m) (9-m)

Step-by-step explanation:

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Answer 2

Answer:

Ans. (9+m) (9-m)

Step-by-step explanation:

We have,

= 81-m²

= 9²-m²

[ since a²-b² = (a+b) (a-b)]

similarly,

= (9+m) (9-m)

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