Question

what is AB?

A= 3 , 5 B = 4
2 , 8 -7

this is a matrix, but it wont let me put in the brackets

Me and I
a=
3, 5
2, 8
Me and I
and b =

4
-7
Me and I
nvm i got this one
Reiny
hope you got

-23
-48