Factorise Completely:- x⁴ – 2x²y² + y⁴

Factorise Completely:-
x⁴ – 2x²y² + y⁴

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x⁴ – x²y² – x²y² + y⁴
x² (x² – y²) – y² (x² – y²)
(x² – y²) (x² – y²)
(x + y) (x – y) (x + y) (x – y)

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Kavungya answered the question on November 13, 2019 at 10:45

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