<PRE><B>Question 300971</B>
Hello, 
Let x be the width and x+9 be the length. The equation will be:
x(x+9)=90 Rewritten as:
x^2+9x-90=0 Factor this to:
(x-6)(x+15)=0 Solve for x:
x=6
x=-15
The obvious answer is 6 cm for the width and 15 cm for the length. 
Make sense?
RJ 
Check out a book I wrote at:
www.math-unlock.com
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