input: Write a python function to find the most frequent words in a given text.
  assert most_frequent_words("the quick brown fox jumps over the lazy dog the the the") == ["the", "quick", "brown"]
  assert most_frequent_words("apple banana apple orange banana apple orange orange") == ["apple", "orange", "banana"]
  assert most_frequent_words("one two three four five six seven eight nine ten one two three four five") == ["one", "two", "three"]
output: def most_frequent_words(text):
      from collections import Counter
      words = text.split()
      frequency = Counter(words)
      most_common = frequency.most_common()
      max_count = most_common[0][1]
      most_frequent = [word for word, count in most_common if count == max_count]
      return most_frequent