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: [[-50, -49, 20, -38], [11, 34, 48], [-10, 25]]

[-1862000, 17952, -250]