Question

(x+1)(x - 1)(x al cuadrado +1)+1

Answer 1

Solucion:
( x + 1 )(x - 1 )(x² + 1 )+ 1 =
(x²-1)(x²+ 1 ) + 1 =
$x^{4} -1 + 1 = x^{4} \\ \\ saludos$

Answer 2

$(x+1)(x-1)(x^2+1)+1= \qquad primero\ resolvemos \ el \ producto \\ \\ (x^2-x+x-1)(x^2+1)+ 1= \\ \\ (x^2-1)(x^2+1)+1= \\ \\ (x^4+x^2-x^2-1)+1= \\ \\ x^4-1+1= \boxed{x^4}$

Espero que te sirva, salu2!!!!