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: [[-6, -25, -42, -2], [-25, -43, 21], [49, -49, -11, 11]]

[12600, 22575, 290521]