document.write( "Question 362311: the length of a rectangle is 2 centimeters less than 3 times its width. its area is 21 square centimeters find the dimensions of the rectangle \n" ); document.write( "
Algebra.Com's Answer #258291 by mananth(16946)![]() ![]() You can put this solution on YOUR website! the length of a rectangle is 2 centimeters less than 3 times its width. its area is 21 square centimeters find the dimensions of the rectangle \n" ); document.write( ".. \n" ); document.write( "width =w \n" ); document.write( "length = 3w-2 \n" ); document.write( "... \n" ); document.write( "L*W= Area \n" ); document.write( "w(3w-2)=21 \n" ); document.write( "3w^2-2w=21 \n" ); document.write( "3w^2-2w-21=0 \n" ); document.write( "3w^2-9w+7w-21=0 \n" ); document.write( "3w(w-3)+7(w-3)=0 \n" ); document.write( "(w-3)(3w+7)=0 \n" ); document.write( ".. \n" ); document.write( "w=3 cm the width \n" ); document.write( "length = 3w-2 \n" ); document.write( "Length =7 cm \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |