Homework Help: math

Posted by Keaton on Tuesday, May 18, 2010 at 12:52am.

THe width of a garden is 8 feet less than the length. If the area of the garden is 20 square feet, find the length and the width.

could someone work this for me. I have but not right.

math - drwls, Tuesday, May 18, 2010 at 5:11am
What if the length is 10 feet?
math - Jen, Tuesday, May 18, 2010 at 9:07am
LW=20
W=L-8
L(L-8)=20
L^2-8L-20=0
(L-10) (L+2)
Only 10 works. When we put ten back in either, equation you get 2 for W.

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