A=[10 20 30; 40 50 60]

As = reshape(A,prod(size(A)),1)

u = [1 2]'

v = [2 3 4]'

K = kron(v,u)

disp("res1 = u'*A*v ")
res1 = u'*A*v

disp("res2 = kron(v,u)'*As ")
res2 = kron(v,u)'*As