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vincpeca
@vincpeca
June 2021
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Bon soir svp aidez moi pour l'exercice 46 a et b et l'exercice 47 a et b
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winner123
Verified answer
Bonsoir
46 a) (√3-2)(5√3+4)
= 15 + 4√3 - 10 √3 - 8
= 7 - 6 √3
b) (7 - 2√6 ) ( √6 - √16)
= 7√6 - 7 √16 - 12 + 2√96
= 7√6 - 28-12+8√6
= - 40 +15√6
47
a) (√11+4)²= (√11)² + 8√11 + 16
= 11+8√11+ 16= 27+8√11
b)(2√6 -7)² = 24 - 28√6 +49
= 73 -28√6
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Verified answer
Bonsoir46 a) (√3-2)(5√3+4)
= 15 + 4√3 - 10 √3 - 8
= 7 - 6 √3
b) (7 - 2√6 ) ( √6 - √16)
= 7√6 - 7 √16 - 12 + 2√96
= 7√6 - 28-12+8√6
= - 40 +15√6
47
a) (√11+4)²= (√11)² + 8√11 + 16
= 11+8√11+ 16= 27+8√11
b)(2√6 -7)² = 24 - 28√6 +49
= 73 -28√6