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Sagot :

SKABETIX

Bonjour,

3(x-4)(x+2) = -24

3(x² + 2x - 4x - 8) = -24

3(x² -2x - 8) = -24

x² - 2x - 8 = -8

x² - 2x - 8 + 8 = 0

x² - 2x = 0

x(x - 2) = 0

x = 0 ou x - 2 = 0

x = 0 ou x = 2

S = { 0 ; 2 }

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