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)\"\" \"About 
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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.
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