F(x)=x² +1 What is f(f(x))?

Volkmar Rigo asked Jul 1, 2023

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6 votes

F(x)=x² +1
What is f(f(x))?

Volkmar Rigo asked Jul 1, 2023

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19 votes

Explanation:

Plug

${x}^(2) + 1$

for x.

$( {x}^(2) + 1) {}^(2) + 1$

Note that

$(a + b) {}^(2) = 2ab$

So we have

${x}^(4) + 2 {x}^(2) + 2$

Zanzu answered Jul 6, 2023

by Zanzu

2.9k points

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