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: [[20, -31, 18, -34, -17], [26, 46, 28, -25]]

[-6450480, -837200]