Algebra I need the formula not the answer
posted by Micah
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

Reiny
If you typed the question correctly, then the answer is obvious
(x+8)^2 = 169^2
then x+8 = 169
and x=161 
Ms. Sue
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.

Damon
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 
Micah
TYPO 169cm^2 My apologies.
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