Question 181514
Joke! Why is there a hint? Anyway, proceeding, you are right I=Prt
+   where I=interest
+         P=principal
+         r=rate
+         t=time
So, P=x-11 r=x-11 t=1 (year). Then
I=(x-11)(x-11)(1)=(x-11)<sup>2</sup>=$(x<sup>2</sup>-22x+121)
+++
Power up,
HyperBrain!
+++
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