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Sagot :

Réponse :

a/ 3√2x5√14=15√28=15x2√7=30√7

b/ √294=√6x49=7√6

c/2[tex]\sqrt{12}[/tex]-4[tex]\sqrt{75}[/tex]+2[tex]\sqrt{3}[/tex]=2√3x4-4√3x25+2√3 = 4√3-20√3+2√3=-14√3  

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