A=[8 10 -3 4; 4 5 7 -2; 8 9 10 0; 1 -5 0 6]
B=[-1 2 -3 4; 5 -6 7 -8; 9 0 1 -2; 11 1 0 1]
a= A+B
b= A*B
c= B-A
d= inv(A)
e= (A*B)+(B-A)
f= A^2-2*A*B+B^2
g= inv(B)+inv(A*B)
h= (A^2-B^2)*(B+2*A*B)