Evaluate
9-30\sqrt{6}\approx -64.484692283
Factor
3 {(3 - 10 \sqrt{6})} = -64.484692283
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6\sqrt{6}+9-36\sqrt{6}
Multiply 6 and 6 to get 36.
-30\sqrt{6}+9
Combine 6\sqrt{6} and -36\sqrt{6} to get -30\sqrt{6}.
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