Posted by Micah on Tuesday, February 26, 2008 at 7:08pm.
If the sides of a square are lengthened by 8cm the area becomes 169^2. Find the length of a side of the original square.
I am getting 34.25cm

Algebra I need the formula not the answer  Reiny, Tuesday, February 26, 2008 at 7:18pm
If you typed the question correctly, then the answer is obvious
(x+8)^2 = 169^2
then x+8 = 169
and x=161

Algebra I need the formula not the answer  Ms. Sue, Tuesday, February 26, 2008 at 7:19pm
The square root of 169 is 13, which is the lengthened measure of each side. Subtract 8 from 13 to find the original length of each side.

Algebra I need the formula not the answer  Damon, Tuesday, February 26, 2008 at 7:20pm
You must have a typo. I think you mean the area is 169 cm^2
(S+8)^2 = 169
for which I get 5 cm
However if it really is as you wrote it
then
(S+8)2 = 28561
S + 8 = 169
S = 161
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