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Sagot :

Bjr,

pour x = - 3 : (-3)² - 2 * - 3 - 4 = 9 + 6 - 4 = 15 - 4 = 11.

pour x = 1.5 : 1.5² - 2 * 1.5 - 4 = 2.25 - 3 - 4 = 2.25 - 7 = - 4.75.

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