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Factorise. 9x^2y^2 –16 ??????????????????????????????????????

Factorise.
9x^2y^2 –16 ??????????????????????????????????????

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

9x^2y^2 –16
= (3xy)^2-4^2
= (3xy–4)(3xy+4)
Using Identity: x^2-y^2= (x+y)(x-y)

Thanks

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