The answer is: " 7 " .
_______________________________________________________
Explanation:
_______________________________________________________
Note that: ⁴√7 = 7^(1/4) .
As such: " (⁴√7) * (⁴√7) * (⁴√7) * (⁴√7) " = (⁴√7)⁴ = [ 7^(1/4) ] ^ (4) ;
→ [ 7^(1/4) ] ^ (4) = 7^ [ (1/4) * (4)] = 7¹ = 7 .
_______________________________________________________
The answer is: " 7 " .
_______________________________________________________
