document.write( "Question 1063621: A rectangular painting is m+4 inches wide and 3m-1 inches long. What is the area, in square inches, of the painting in terms of m? \n" ); document.write( "

Algebra.Com's Answer #678743 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
We'll use the formula\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "area = (length)*(width)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "which is the area of a rectangle formula. We're given\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "length = m+4
\n" ); document.write( "width = 3m-1\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So let's plug those values in to get...\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "area = (length)*(width)
\n" ); document.write( "area = (m+4)*(3m-1)
\n" ); document.write( "area = m*(3m-1)+4*(3m-1)
\n" ); document.write( "area = m*(3m)+m(-1)+4*(3m)+4(-1)
\n" ); document.write( "area = 3m^2-m+12m-4
\n" ); document.write( "area = 3m^2+11m-4\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Note: the units of the area are in \"square inches\" (inch * inch = square inches) \n" ); document.write( "

\n" );