document.write( "Question 353608: the side of a rectangle are 5 and 12. if we inrease both sides by the same amount, the new area is 60 more than the original area, by how much are the sides increased. \n" ); document.write( "
Algebra.Com's Answer #252670 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! Hi, \n" ); document.write( "Let x represent the amount each side is increased. \n" ); document.write( "area ofa rectangle is = l*w \n" ); document.write( ".\r \n" ); document.write( "\n" ); document.write( "question states \n" ); document.write( "(12 + x)(5 + x) = 5*12 + 60 = 120\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( "solve \n" ); document.write( "60 + 17 x + x^2 = 120 \n" ); document.write( ". \n" ); document.write( "x^2 + 17x - 60 = 0 \n" ); document.write( ". \n" ); document.write( "factor \n" ); document.write( "(x + 20)(x-3) = 0 \n" ); document.write( ". \n" ); document.write( "cannot use solution x = -20 \n" ); document.write( ". \n" ); document.write( "x = 3 \n" ); document.write( ". \n" ); document.write( "check your answer \n" ); document.write( "15 * 8 = 120 \n" ); document.write( " |