Posted by **Hannah** on Tuesday, February 22, 2011 at 9:06pm.

use the quotient rule to find derivative.

y= 3x^2+8 / x^2+3

(x^2+3)(6x) - (3x^2+8)(2x) all over (x^2+3)^2

The answer is 2x/(x^2+3)^2

The only problem is I am not sure how they simplified this to get the answer.

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