Question

factorise x⁴-y⁴ urgent​

Answer 1

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$(x {}^{4} - y {}^{4} ) = (x {}^{2} + y {}^{2} )(x {}^{2} - y {}^{2} )$

Identity used:

$(a + b)(a - b) = a {}^{2} - b {}^{2}$

Answer 2

Answer:

it will be the answer..