document.write( "Question 446629: Their is a rectangle and its legnth is d-12 and the width is d. If the area is 28 square units, what is the value of d? \n" ); document.write( "
Algebra.Com's Answer #307583 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
There is a rectangle and its length is d-12 and the width is d. If the area is 28 square units, what is the value of d?
\n" ); document.write( "----
\n" ); document.write( "Area = length*width
\n" ); document.write( "---
\n" ); document.write( "28 = (d-12)d
\n" ); document.write( "d^2-12d-28 = 0
\n" ); document.write( "---
\n" ); document.write( "Factor using Inverse FOIL:
\n" ); document.write( "d^2-14d+2d-28 = 0
\n" ); document.write( "d(d-14)+2(d-14) = 0
\n" ); document.write( "(d-14)(d+2) = 0
\n" ); document.write( "----
\n" ); document.write( "Positive solution:
\n" ); document.write( "width = d = 14
\n" ); document.write( "length = d-12 = 2
\n" ); document.write( "=======================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );