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Kenza1504
@Kenza1504
April 2019
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Bonjour, il faut calculer :
B=3(2x-7)-(2x-8)(-2x+5)²
en sachant que x=10
merci
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maudmarine
Verified answer
Calculer B=3(2x-7)-(2x-8)(-2x+5)² Pour x = 10
B = 3 (2x - 7) - (2x - 8) (- 2x + 5)²
B = 3 (2 * 10 - 7) - (2 * 10 - 8) ( - 2 * 10 + 5)²
B = 3 (20 - 7) - (20 - 8) (- 20 + 5)²
B = 60 - 21 - (12) (- 15²)
B = 60 - 21 - (12) (225)
B = 60 - 24 - 2700
B = 2736
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Thanks 1
kenza1504
merciiiiii :)
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Verified answer
Calculer B=3(2x-7)-(2x-8)(-2x+5)² Pour x = 10B = 3 (2x - 7) - (2x - 8) (- 2x + 5)²
B = 3 (2 * 10 - 7) - (2 * 10 - 8) ( - 2 * 10 + 5)²
B = 3 (20 - 7) - (20 - 8) (- 20 + 5)²
B = 60 - 21 - (12) (- 15²)
B = 60 - 21 - (12) (225)
B = 60 - 24 - 2700
B = 2736