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Sagot :

Bonjour,

[tex]\sqrt{12} + 7 \sqrt{3} - \sqrt{27} \\ =\sqrt{2^{2} }\sqrt{3} +7\sqrt{3} -\sqrt{3^{2} }\sqrt{3} \\= 2\sqrt{3} + 7 \sqrt{3} - 3 \sqrt{3} \\ = (2 + 7 - 3) \sqrt{3} \\ = 6 \sqrt{3}[/tex]

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