Tell me what is wrong

Question

I have tryed to figure out why I get lots of different errors on this last piece of code:
nu = list(range(7))
print(nu)

numbers = list(range(3, 8)
print(numbers)

nuum = list(range(1, 30, 4))
print(nuum)

Answer 1

# It should be okay now

nu = list(range(7))
print(nu)
# [0, 1, 2, .., 6]

numbers = list(range(3, 8)) # <-- closing bracket added
print(numbers)
# [3, 4, 5, 6, 7]

nuum = list(range(1, 30, 4))
print(nuum)
# [1, 5, 9, .., 29]

Answer 2

You didn't close the bracket in the 'numbers' variable definition.

Answer 3

Can you go a bit deeper into that explanation. perhabs show me an example using one of the codes above. Thanks!