document.write( "Question 46916: the length of a rectangle is 2 feet less than 3 times its width. Find the length and width if the area of the garden is 21 square feet. \n" ); document.write( "
Algebra.Com's Answer #31062 by mathchemprofessor(65)![]() ![]() You can put this solution on YOUR website! Let the width of the rectangle be x feet. So, its length will be (3x-2)feet. Since area is 21 square feet. The equation is \n" ); document.write( "(3x-2).x=21 \n" ); document.write( "3x^2-2x-21=0 \n" ); document.write( "Solving either by factoring or using quadratic formula,x=3 or -7/3. \n" ); document.write( "The length of the rectangle=(3x-2)=7 feet and width=3. \n" ); document.write( "Note:-7/3 is not valid for getting the solution. \n" ); document.write( " \n" ); document.write( " |