Question

1:- x⁴-1 factorise...​

Answer 1

${x}^{4} - {1}^{4}$

$( {x}^{2} + {1}^{2} )( {x}^{2} - {1}^{2} )$

$( {x}^{2} + 1)( x +1)(x - 1 )$

That's the Answer

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- RichsonTutor