Question 969992
Using the two column vectors A and B given below
A = {{{(matrix(2,1,-4,0))}}} and B = {{{(matrix(2,1,-9,2))}}}, 
find 3A + B
<pre>
{{{3A}}}{{{""+""}}}{{{B}}}{{{""=""}}}{{{3(matrix(2,1,-4,0))}}}{{{""+""}}}{{{(matrix(2,1,-9,2))}}}{{{""=""}}}{{{(matrix(2,1,3*(-4),3*(0)))}}}{{{""+""}}}{{{(matrix(2,1,-9,2))}}}{{{""=""}}}{{{(matrix(2,1,-12,0))}}}{{{""+""}}}{{{(matrix(2,1,-9,2))}}}{{{""=""}}}{{{(matrix(2,1,-21,2))}}}

Edwin</pre>