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September 20, 2014

September 20, 2014

Posted by **amanda** on Saturday, May 12, 2012 at 10:29pm.

- math -
**drwls**, Sunday, May 13, 2012 at 6:41amLet x = margin width.

(18 - 2x)(22 - 2x) = 96

396 - 80x +4x^2 = 96

300 -80x +4x^2 = 0

x^2 -20x + 75 = 0

(x-15)(x-5) = 0

x = 5 cm is the only margin width that results in positive length and width of the printed area.

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