Answer :
You need to find a number that you can multiply by itself 3 times and wind up with -64 .
Like [ N x N x N = -64 ] .
Try some small numbers:
1 x 1 x 1 = 1
2 x 2 x 2 = 8
3 x 3 x 3 = 27
4 x 4 x 4 = 64 . . . There it is ... almost ! The right number, but the wrong sign.
Now try (-4).
Like [ N x N x N = -64 ] .
Try some small numbers:
1 x 1 x 1 = 1
2 x 2 x 2 = 8
3 x 3 x 3 = 27
4 x 4 x 4 = 64 . . . There it is ... almost ! The right number, but the wrong sign.
Now try (-4).
