COROANA!(ex clasa a VII-a)
[tex]2 \sqrt{6} + 3 \sqrt{3} - (5 \sqrt{6} - 3 \sqrt{3} ) + ( - 3 \sqrt{6} - 9 \sqrt{3} )[/tex]




[tex](3 \sqrt{2} - 2 \sqrt{3} ) + ( - 4 \sqrt{2 } - 3 \sqrt{3} ) - (6 \sqrt{2} - 5 \sqrt{3} )[/tex]

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