Evaluate
6\sqrt{6}-6\approx 8.696938457
Factor
6 {(\sqrt{6} - 1)} = 8.696938457
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6\sqrt{6}-\left(\sqrt{6}\right)^{2}
Use the distributive property to multiply \sqrt{6} by 6-\sqrt{6}.
6\sqrt{6}-6
The square of \sqrt{6} is 6.
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