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# Which expression represents f(f(x)) if f(x)= x^2 - 1?

### 1 Answer

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- rotchmLv 71 month ago
f --> square it -1

So take (x²-1), square that and -1.

What do you finally get?

Hopefully no one will spoil you the answer thereby depriving you from your personal enhancement; that would be very inconsiderate of them.

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