Question

find (2x + 3/y) (2x - 3/y) using suitable identity

Answer 1

This question is in the form
(a+b)(a-b)
Which is = a^2-b^2
So the answer is 4x^2- 9/y^2
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Answer 2

Answer:

We rationalised it in first step

then we use formula of (a+b)2

and a2-b2

and simplify it