SOLUTION: How ould yu solve this? I understand the 2x2 matrice but this one is different no tin the book Perform the indicated operation, whenever possible [-9 7] [-5 -1] [-2 -2]

Algebra ->  Matrices-and-determiminant -> SOLUTION: How ould yu solve this? I understand the 2x2 matrice but this one is different no tin the book Perform the indicated operation, whenever possible [-9 7] [-5 -1] [-2 -2]       Log On


   

Question 175335: How ould yu solve this? I understand the 2x2 matrice but this one is different
no tin the book
Perform the indicated operation, whenever possible
[-9 7] [-5 -1] [-2 -2]
8 -9 + 2 2 - -4 -4
I this problem they have [ for th two lines in each box and then + then [ then minus [
I hope you understand..Cant find the [ bigg enough to do the boxes in each 2x2 matrice..
my answer of choice is:
A. -16 4 B. -12 8 c. -2 10 d. -6 6
6 -11 14 -3 10 -7 2 -15
I hope you understand...I think it is C.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I think this is your problem.

If not, please let me know.
a=-9-5-%28-2%29=-12
b=7-1-%28-2%29=8
c=8%2B2-%28-4%29=14
d=-9%2B2-%28-4%29=-3
%28matrix%282%2C2%2Ca%2Cb%2Cc%2Cd%29%29=%28matrix%282%2C2%2C-12%2C8%2C14%2C-3%29%29
The answer is B.