F(x) = x² + 1
What is f(f(x))?

f(f(x)) = (x^4) + 2(x^2) + 2

Step-by-step explanation:

f(f(x)) = f(x), with the equation plugged into itself.

That means that if f(x) = x^2 + 1, then:

f(f(x)) = (x^2 + 1)^2 + 1 -->

f(f(x)) = x^4 +2x^2 + 1 + 1 -->

f(f(x)) = (x^4) + 2(x^2) + 2

x⁴ + 2x² + 2

Step-by-step explanation:

f(x) = x² + 1

f(f(x)) = (f(x))² + 1

f(f(x)) = (x² + 1)² + 1

f(f(x)) = x⁴ + 2x² + 1 + 1

f(f(x)) = x⁴ + 2x² + 2

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out

ranks (& how to earn them):

-beginner (needs at least 0 points & 0 brainliest answers)

- hand (needs at least 100 points & 0 brainliest answers)

-ambitious   (needs at least 250 points & 0 brainliest answers)

-virtuoso (needs at least 500 points & 5 brainliest answers)

-expert   (needs at least 1,000 points & 10 brainliest answers)

-ace (needs at least 3,000 points & 15 brainliest answers)

-genius   (needs at least 15,000 points & 50 brainliest answers)

how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.