Q. 64.6( 10 Votes )

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Answer :

We have,


9a2b2 – 25


= (3ab)2 – (5)2


By using the formula a2 – b2 = (a + b)(a – b)


We get,


9a2b2 – 25 = (3ab)2 – (5)2


= (3ab + 5)(3ab – 5)


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