bonjour
k (x) = 6 x² - 7 x - 3
k ( 0 ) = - 3
k ( 3/2 ) = 6 * 9/4 - 7 *3/2 - 3 = 54/4 - 21/ 2 - 3 = 13.5 - 10.5 - 3 = 0
k( - 1) = 6 + 7 - 3 = 10
k ( - 1/3 ) = 6 * 1/9 + 7/3 - 3 = 6/9 - 21/9 - 27/9 = - 42/9 = - 14/3
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bonjour
k (x) = 6 x² - 7 x - 3
k ( 0 ) = - 3
k ( 3/2 ) = 6 * 9/4 - 7 *3/2 - 3 = 54/4 - 21/ 2 - 3 = 13.5 - 10.5 - 3 = 0
k( - 1) = 6 + 7 - 3 = 10
k ( - 1/3 ) = 6 * 1/9 + 7/3 - 3 = 6/9 - 21/9 - 27/9 = - 42/9 = - 14/3