bonjour
g (x) = - 2 x² - 8 x - 6
g (x) = 0
- 2 x² - 8 x - 6 = 0
Δ = 64 - 4 ( - 2 * - 6) = 64 - 48 = 16
x 1 = ( 8 - 4 ) /- 4 = - 4/4 = - 1
x 2 = ( 8 + 4 ) / - 4 = - 12/4 = - 3
racines = - 1 et - 3 donc conclus
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bonjour
g (x) = - 2 x² - 8 x - 6
g (x) = 0
- 2 x² - 8 x - 6 = 0
Δ = 64 - 4 ( - 2 * - 6) = 64 - 48 = 16
x 1 = ( 8 - 4 ) /- 4 = - 4/4 = - 1
x 2 = ( 8 + 4 ) / - 4 = - 12/4 = - 3
racines = - 1 et - 3 donc conclus