You can put this solution on YOUR website!
its trial and error but you need to find a number that if its raised to the power of 3 will give you 1331. In this case its 11^3
Now You can rewrite your equation using the newly found number.
x^3=11^3 since both side is to the power of 3 you can get ride of the powers.
x=11 is your final answer!