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: [[-4, -15, 38, 9, -9], [15, -10, -39, -17, -20]]

[-184680, 1989000]