Question

Someone help. /.\
1.Find -5A+4B

2. 2X+2
[2 -8] = [4 -6]
[-4 2] [2 -8]

3.Find the product.
[-5 -2] [-5 7]
[-8 -5] [-9 -5]

Answer 1

#1: A=[6 1] B=[-5 -1]
[-4 -6] [-3 -8]
[7 -7] [6 8]

Answer 2

@SolomonZelman

Answer 3

To every element of matrix A, multiply \(-5\) and to every element of matrix B, multiply \(4\), then just add corresponding elements.. :)

Answer 4

well