Evaluate
2\sqrt{3}+12\sqrt{2}-\sqrt{6}\approx 17.985174621
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2\sqrt{3}-\sqrt{6}+6\times \frac{4\sqrt{2}}{\left(\sqrt{2}\right)^{2}}
Rationalize the denominator of \frac{4}{\sqrt{2}} by multiplying numerator and denominator by \sqrt{2}.
2\sqrt{3}-\sqrt{6}+6\times \frac{4\sqrt{2}}{2}
The square of \sqrt{2} is 2.
2\sqrt{3}-\sqrt{6}+6\times 2\sqrt{2}
Divide 4\sqrt{2} by 2 to get 2\sqrt{2}.
2\sqrt{3}-\sqrt{6}+12\sqrt{2}
Multiply 6 and 2 to get 12.
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