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Simplify. sqrt108 - 3sqrt8 - sqrt27
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Umm, do you know that rule about if you have something like \(\sqrt{9}\) you can split it into \(\sqrt{3*3}\) ?
Similary, you can split \(\sqrt{162}\) into \(\sqrt{9*9*2}\) hence \(9\sqrt{2}\), can you do that for everything you have there?
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