Answers

2014-08-06T19:43:11+08:00
The Width is equal to X - 12 (we assume X is the number) and the Length is equal to X + 12. Using the formula, Area = Width × Length, we have: Area = (X - 12)(X + 12).
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2014-08-06T19:48:28+08:00
Let x = be the number
(x-12)(x+12)=x2=144
x=12
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