Respuesta :

culveryolanda46

Step-by-step explanation:

Plug

[tex] {x}^{2} + 1[/tex]

for x.

[tex]( {x}^{2} + 1) {}^{2} + 1[/tex]

Note that

[tex](a + b) {}^{2} = 2ab[/tex]

So we have

[tex] {x}^{4} + 2 {x}^{2} + 2[/tex]