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Mr. Hui · 12-10-2007

For (a) ${a^2}+8a+16$ , factor the trinomial into $(a+4)(a+4)$ . Therefore, each side is $a+4$ and the perimeter will be $4(a+4) = 4a+16$ .

You can use a similar process to find (b).

For (c), use the format $(7a + ?)(7a + ?)$

12-10-2007	#2
Mr. Hui Join Date: Mar 2005 Posts: 10,609	For (a) ${a^2}+8a+16$ , factor the trinomial into $(a+4)(a+4)$ . Therefore, each side is $a+4$ and the perimeter will be $4(a+4) = 4a+16$ . You can use a similar process to find (b). For (c), use the format $(7a + ?)(7a + ?)$ __________________ Do Math and you can do Anything! Last edited by Mr. Hui; 12-10-2007 at 11:27 PM..