If `A=[[3,-5],[-4,2]]`, find `A^2-5A-14I`.

If A=[[3,-5-4,2]], then find A^(2)-5A-14I. Hence,obtain A^(3)

If A=[{:(3,-5),(-1,2):}] then find A^(2)-5A- 4I .

If A=[(1,-2),(-3,4)] , then find A^(2)+5A .

If =[[1,4,-1],[2,6,5]] and B=[[3,-2,-6],[2,0,-7]] , find A+B and A-B

If A=[[2,3,-4],[1,0,6],[-2,1,5]],B=[[5,1,2],[6,-1,4],[5,3,-4]] , find 2A-3B .

If A=[(2, 0, 1 ),(2, 1, 3),( 1,-1, 0)] , find A^2-5A+4I and hence find a matrix X such that A^2-5A+4I+X=O .

If A=[{:(3,-5),(-4," "2):}] . Find the value of A^(2)-5A-14"I"

If A=[[2,3],[4,-1]] and B=[[3,0],[4,5]] then find (i) 3A+2B and (ii) 5A-3B

If A={:[(-1,3),(4,5)]:} , then find (A-I)(A-2I).

If A=[[-2,1],[5,0],[-1,4]],B=[[-2,3,1],[4,0,2]] then find 2A+B^T