Question

PLIS ES PARA HOYY...☺️☺️☺️

Answer 1

Recuerda:

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

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$= \sqrt{1 + {(x}^{2} - 1)( {x}^{2} + 1)( {x}^{4} + 1) } \\ = \sqrt{1 + ( {x}^{4} - 1)( {x}^{4} + 1) } \\ = \sqrt{1 + {x}^{8} - 1 } \\ = \sqrt{ {x}^{8} } \\ = {x}^{4}$