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The equation is ((16 * sqrt(21)) / (2 * sqrt(7))) - (5 * sqrt(12)). Please help. It's an extra credit assignment and I'm having trouble. :\
 Feb 15, 2012
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[input]((16 * sqrt(21)) / (2 * sqrt(7))) - (5 * sqrt(12)[/input])
 Feb 15, 2012

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