zuwrld2 zuwrld2
  • 24-05-2022
  • Mathematics
contestada

f(x)=x² +1
What is f(f(x))?

Respuesta :

culveryolanda46
culveryolanda46 culveryolanda46
  • 24-05-2022

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]

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