Question

Expand using suitable identity
(x − 1)(x + 1)(x^2 + 1)



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Answer 1

Answer:

Refer the attachment

Answer 2

Answer:

$(x - 1)(x + 1)( {x}^{2} + 1) \\ ( {x}^{2} - {1}^{2} )( {x }^{2} + {1}^{2}) \\ = { {x}^{2} }^{2} - { {1}^{2} }^{2} \\ = {x}^{4} - 1$