The length of a rectangle is the sum of the width and 3. The area of the rectangle is 54 units. What is the width, in units, of
2 answers:
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I think you mean to say 
. If 
is in the third quadrant, then 
and 
. Recall that
We expect
to be negative, so we take the negative root. We end up with
We also know to expect, so
By definition, we have
and so
We expect
We also know to expect
By definition, we have
and so