Question

Factorise using identity 9^2


^2 – 16
plzz plzz help me ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

(1)9x²y²-16

sol=3xy²-16

=3xy²-(4)²

using identity (a²-b²)=(a-b) (a+b)

(3xy-4) (3xy+4)

Step-by-step explanation:

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