document.write( "Question 278296: A rectangle is 8 cm longer than it is wide. Find the dimensions of the rectangle if its area is 240 sq-cm.\r
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document.write( "length = cm
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document.write( "width = cm \n" );
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Algebra.Com's Answer #202521 by Grinnell(63)![]() ![]() ![]() You can put this solution on YOUR website! x+8 is length \n" ); document.write( "x is width, OK \n" ); document.write( "x(x+8)=240\r \n" ); document.write( "\n" ); document.write( "x^2+8x=240 \n" ); document.write( "x^2+8x-240=0 \n" ); document.write( "(x+20)(x-12)=0 \n" ); document.write( "X cannot be negative, so x must be 12. \n" ); document.write( "SO, 20 is length \n" ); document.write( "12 is length\r \n" ); document.write( "\n" ); document.write( "Don't be afraid of quadratic equations!!!! Do the WORK!! LOL Good night. \n" ); document.write( " |