Bonjour,
Développer
E= 2(√5 + 3)(√5 + 3)
E= 2(√25+3√5+3√5+9)
E= 2(√25+6√5+9)
E= 2( 5 +6√5 +9)
E= 10 + 12√5 +18
E= 28 + 12√5
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Bonjour,
Développer
E= 2(√5 + 3)(√5 + 3)
E= 2(√25+3√5+3√5+9)
E= 2(√25+6√5+9)
E= 2( 5 +6√5 +9)
E= 10 + 12√5 +18
E= 28 + 12√5