document.write( "Question 62618This question is from textbook Applied College Algebra
\n" ); document.write( ": Let A = [-2 9 ] and B = [4 1].
\n" ); document.write( " [ 4 5 ] [-2 6]
\n" ); document.write( "a. Find 2A - B.
\n" ); document.write( "b. Find BA. \n" ); document.write( "
Algebra.Com's Answer #43431 by venugopalramana(3286)\"\" \"About 
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Let A = [-2 9 ] and B = [4 1].DO YOU MEAN....
\n" ); document.write( " [ 4 5 ] [-2 6]....ASSUMING SO \r
\n" ); document.write( "\n" ); document.write( "a. Find 2A - B.
\n" ); document.write( "2A = OMITTING BRACKETS...MULTIPLY EACH ELEMENT OF A WITH 2
\n" ); document.write( "-4,18
\n" ); document.write( " 8,10
\n" ); document.write( "2A-B = ...........SUBTRACT EACH ELEMENT OF B
\n" ); document.write( "FROM CORRESPONDING ELEMENT OF 2A
\n" ); document.write( "-4-4,18-1
\n" ); document.write( "8+2,10-6
\n" ); document.write( "=
\n" ); document.write( "-8,17
\n" ); document.write( "10,4
\n" ); document.write( "
\n" ); document.write( "b. Find BA.
\n" ); document.write( "4,1........*........-2,9
\n" ); document.write( "4,5........*........-2,6
\n" ); document.write( "BA=
\n" ); document.write( "4*-2+1*-2,4*9+1*6
\n" ); document.write( "4*-2+5*-2,4*9+5*6
\n" ); document.write( "=
\n" ); document.write( "-10,42
\n" ); document.write( "-18,66 \n" ); document.write( "
\n" );