Question

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.

Answer 1

What if the length is 10 feet?

Answer 2

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.