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: [[16, -42, -15, 5, 25], [-18, -50, 38, -4], [-19, 45, -28, 38, 4]]

[1260000, -136800, 3638880]