Verified Answer :

\(\frac{2}{3}* \frac{2}{3}* \frac{2}{3}= \frac{8}{27}\)

Tareki

in first example it says 10^4 = --- --- --- ---- 
 there are 4 solutions so we take 4th root to 10^4 which = 10 
so 10^4 = 10
10 10 10 
in second example it says 8/27 = ---- ----- ----- 
there are 3 solutions so we take 3th root to 8/27 which = 2/3 
 so 8/27 = 23 2/3 2/3 
the third example it says 64 = ---
---- ------ 
3 solutions so we take 3th root to 64 which is = 4 
so 64 = 4
4 * 4