bonjour
E = 4 x² - 24 x + 36
1. E = 4 *0.25 - 24 *0.5 + 36 = 25
2. E = ( 2 x - 6 )²
3 . s'annule pour x = 6/2 = 3
E = 4 x² - 6 x + 14 x - 21 = 4 x² + 8 x - 21
G = 4 x + 14 + 4 x - 6 = 8 x + 8
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bonjour
E = 4 x² - 24 x + 36
1. E = 4 *0.25 - 24 *0.5 + 36 = 25
2. E = ( 2 x - 6 )²
3 . s'annule pour x = 6/2 = 3
E = 4 x² - 6 x + 14 x - 21 = 4 x² + 8 x - 21
G = 4 x + 14 + 4 x - 6 = 8 x + 8