bonjour j'ai un exercice que j'ai un du mal a faire, pouvez vous m'aider
a=[tex]\sqrt{7} +\sqrt{3}[/tex] et b=[tex]\sqrt{7} -\sqrt{3}[/tex]
calculer [tex]a^{2}[/tex] , [tex]b^{2}[/tex] , a*b et enfin [tex](a+b)^{2}[/tex]
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