Joseph B. answered  04/18/20
Tutor
                    
        4.9
        (438)
            Experienced SAT, Algebra, Geometry, Trig and Pre-Calculus tutor
A =
|-3 4|
|2. -3|
|-1 0|
B =
|4 1|
|1 -2|
|3 -4|
2B =
|8 2|
|2 -4|
|6 -8|
2A - 3B =
|-18 5|
|1 0|
|-11 12|
 
     
             
 
                     
                    