Is it possible to find an edge length that would be perfect for a cube with a volume of 30 cubic units . explain

Volume of cube = 
=>  30    = 

So, Side  = 

Side = 3.107232......... and goes on.

Cube root of 30 is not a natural number or a terminating decimal number.
It is a non-terminating decimal number. So, physically it is not possible to find an edge length that will give volume 30 cubic units

X= 49; x = 4step 1: foilstep 2: equal both to 0step 3: find x individually