Please solve
Factorise : the above question
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Step-by-step explanation:
x⁴ y⁴
------ +. ------
4. 9
(x²)² (y²)²
-------- +. -------
(2)² (3)²
(x²/2)²+(y²/3)²
( x²/2+y²/3)²-2x²/2*y²/3
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