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Sagot :

VINS

bonjour

il suffit pourtant de savoir lire ....

x

x - 5

( x - 5)²  = x² - 10 x + 25

si on choisit  2 =  2 ² - 10* 2 + 25  = 4  - 20 - 25 =   - 41

si on choisit  4 =  4 ² - 10 * 4  + 25 = 16 - 40 + 25 =  1

f (x) =  x² - 10 x + 25

f ( 2) = - 41

f ( 4) =  1  

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