Definition: In this task you will be given a list of lists, of numbers. For every inner list, you should multiply every number in that list and put the results in your answer. The output should be a list of numbers with the same length as the number of the lists in the input list.
Input: [[21, 36, -3, 4], [49, -14, -48, -14, -4], [-30, 9, 39, 6]]

[-9072, 1843968, -63180]