bonjour
f (x) = x² - 6 x + 2
il suffit de remplacer x
f ( - 1 ) = ( - 1 )² - 6 ( - 1 ) + 2 = 1 + 6 + 2 = 9
f ( 0) = 2
f ( 1 ) = 1 ² - 6 + 2 = - 3
continue
f (x) = x² / ( x + 3 ) avec x ≠ - 3
f ( - 2 ) = ( - 2 )² / ( - 2 + 3 ) = 4
f ( - 1 ) = ( - 1 )² / ( - 1 + 3 ) = 1 /2
continue
