Answer:
Option D =[6 18] is the correct answer
Explanation:
Given that:
[4 2] * [-2 5; 7 -1]
For taking product:
- above matrices are okay for multiplication as number of columns of first matrix are equal to number of rows of second matrix.
- So it will be done as follows:
= [4*-2 + 2*7 4*5 + 2*-1]
=[-8 + 14 20 + (-2) ]
=[6 18]
i hope it will help you!