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: [[45, -48], [28, 33, -49, 17], [-41, 24], [-37, 40]]

[-2160, -769692, -984, -1480]