bonjour
g (x) = 2 x² - 1
g ( - 2 ) = 2 ( * 2 )² - 1 = 8 - 1 = 7
g ( - 1.5 ) = 2 ( - 1.5 )² - 1 = 4.5 - 1 = 3.5
g ( - 1 ) = 2 ( - 1 )² - 1 = 2 - 1 = 1
continue il suffit de remplacer x
