Posted by **Donnice** on Thursday, August 11, 2011 at 9:19pm.

Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this.

(a+3)^2

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**Henry**, Friday, August 12, 2011 at 5:52pm
(a+3)^2 = a^2 + 6a + 9.

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