document.write( "Question 206225: Hi all, I have a Matrix problem that I am not quite sure of how to solve.
\n" ); document.write( "For the given matrix A:
\n" ); document.write( "(1 2 3)
\n" ); document.write( "(2 1 -1)
\n" ); document.write( "(2 0 1)
\n" ); document.write( "a) Write the matix 4a. (Does this just mean I solve it by multiplying each number by 4?) and
\n" ); document.write( "b) Use matrix multiplication to find A^2 = AA.
\n" ); document.write( "Any help would be most appreciated.
\n" ); document.write( "Thanks, -Nick.
\n" ); document.write( "

Algebra.Com's Answer #155796 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
For the given matrix A:
\n" ); document.write( "(1 2 3)
\n" ); document.write( "(2 1 -1)
\n" ); document.write( "(2 0 1)
\n" ); document.write( "a) Write the matix 4a. (Does this just mean I solve it by multiplying each number by 4?)
\n" ); document.write( "That's it. 4 times each element.
\n" ); document.write( "----------------
\n" ); document.write( " and
\n" ); document.write( "b) Use matrix multiplication to find A^2 = AA.
\n" ); document.write( "|11 4 4|
\n" ); document.write( "|+2 5 4|
\n" ); document.write( "|+4 4 7|
\n" ); document.write( "
\n" );