document.write( "Question 472508: Short Answer. The length of the side of a rectangular desk is given by 3x - 2y cm. The length of the front is given by 3x + 2y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer. \n" ); document.write( "
Algebra.Com's Answer #324175 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
Area = (3x-2y)(3x+2y) sq cm\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "We don't even need to expand it; all we need to do is realize it is a difference of two squares.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Area = 9x^2 - 4y^2 sq cm
\n" ); document.write( "
\n" );