autumn00: :?: what is the value of x if x(x-9)=11.25
The easiest way to do this is to
expand the brackets,
take 11.25 from both sides
and then use the quadratic formula to solve it.
If you aren't sure of the quadratic formula you will find it here.
http://www.youtube.com/watch?v=O8ezDEk3qCg
Try to do it yourself now
+118654 
