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if-4-2-2-x-find-x-




Question Number 139656 by mohammad17 last updated on 30/Apr/21
if ^4 2=2^x   find x
$${if}\:\:^{\mathrm{4}} \mathrm{2}=\mathrm{2}^{{x}} \:\:{find}\:{x} \\ $$
Commented by mr W last updated on 30/Apr/21
what is^4 2?
$${what}\:{is}\:^{\mathrm{4}} \mathrm{2}? \\ $$
Commented by mohammad17 last updated on 30/Apr/21
^n a=a^a^a^a   =a^(n(times))
$$\:^{{n}} {a}={a}^{{a}^{{a}^{{a}} } } ={a}^{{n}\left({times}\right)} \\ $$
Commented by mr W last updated on 30/Apr/21
you mean then  2^2^2^2   =2^x   ⇒x=2^2^2  =16
$${you}\:{mean}\:{then} \\ $$$$\mathrm{2}^{\mathrm{2}^{\mathrm{2}^{\mathrm{2}} } } =\mathrm{2}^{{x}} \\ $$$$\Rightarrow{x}=\mathrm{2}^{\mathrm{2}^{\mathrm{2}} } =\mathrm{16} \\ $$
Commented by greg_ed last updated on 30/Apr/21
:)
$$\left.:\right) \\ $$
Commented by mohammad17 last updated on 30/Apr/21
yes sir thank you
$${yes}\:{sir}\:{thank}\:{you} \\ $$

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