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: [[46, -10], [13, -47], [38, 50], [-16, 44, -14, -25]]

[-460, -611, 1900, -246400]