Question 439277
{{{C = (matrix(2,2,2,1,1,-2))*(matrix(2,2,2,3,1,4))^(-1)}}}
={{{(matrix(2,2,2,1,1,-2))*((1/5)(matrix(2,2,4,-3,-1,2)))}}}
= {{{(1/5)(matrix(2,2,7,-4,6,-7)) = (matrix(2,2,7/5,-4/5,6/5,-7/5))}}}