Question 1186295
.
<pre>

w = the width, in feet.

(w+3) ft,  the length.



The area INEQUALITY

    w*(w+3) <= 18 ft^2



Transform to the standard quadratic inequality form

    w^2 + 3w - 18 <= 0



Factor left side

    (w+6)*(w-3) <= 18    



The solution is  -6 <= w <= 3.



Due to obvious physical reason, the possible values of the width w must satisfy
this inequality

    0 <= w <= 3.



<U>ANSWER</U>.  The width of the garden must satisfy this inequality  0 <= w <= 3  ft.   The length should be (w+3) ft.
</pre>


Solved and explained in all details.



Happy learning &nbsp;(&nbsp;!&nbsp;)