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Question-136598




Question Number 136598 by I want to learn more last updated on 23/Mar/21
Answered by Olaf last updated on 23/Mar/21
f(x) = x^2 −x−2  f(−2) = 4  2f(−2) = 8  f(2f(−2)) = f(8) = 64−8−2 = 54
$${f}\left({x}\right)\:=\:{x}^{\mathrm{2}} −{x}−\mathrm{2} \\ $$$${f}\left(−\mathrm{2}\right)\:=\:\mathrm{4} \\ $$$$\mathrm{2}{f}\left(−\mathrm{2}\right)\:=\:\mathrm{8} \\ $$$${f}\left(\mathrm{2}{f}\left(−\mathrm{2}\right)\right)\:=\:{f}\left(\mathrm{8}\right)\:=\:\mathrm{64}−\mathrm{8}−\mathrm{2}\:=\:\mathrm{54} \\ $$
Commented by I want to learn more last updated on 23/Mar/21
Thanks sir.
$$\mathrm{Thanks}\:\mathrm{sir}. \\ $$

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