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February 1, 2015

February 1, 2015

Posted by **TUHITUHI** on Tuesday, August 14, 2012 at 12:07pm.

- math -
**Steve**, Tuesday, August 14, 2012 at 12:18pmgiven original width x and length y,

y = x + 4

(x+3)(y+3) = xy+81

x=10

y=14

check:

14 = 10+4

14*10 = 140

(10+3)(14+3) = 13*17 = 221 = 140+81

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