Question 1107867
I really need some help describing and correcting the error. 
[r^2-7r+12]/ [r+4] divided by [r^2-7r+12]/[r^2+6r+8] 
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= (r^2+6r+8)/(r+4)
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= [(r+4)(r+2)]/(r+4)
Note:: The graph of this would be the line y = r+2 with
a hole at r = -4.
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Cheers,
Stan H.
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