document.write( "Question 769893: barbie & ken planned to build a square house with area x2 square feet. then they revised the plan so that one side was lengthened by 20 feet and the other side was shortened by 6 feet. find the trinomial that can be used to represent the area of the revised house. \n" ); document.write( "
Algebra.Com's Answer #469111 by alittletooconfused(7)\"\" \"About 
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original plan = x2
\n" ); document.write( "revised plan = (x+20)(x-6)\r
\n" ); document.write( "\n" ); document.write( "f=x2
\n" ); document.write( "o=-6x
\n" ); document.write( "i=20x
\n" ); document.write( "l=-120\r
\n" ); document.write( "\n" ); document.write( "x2-6x+20x-120
\n" ); document.write( "x2+14x-120
\n" ); document.write( "
\n" );