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Sagot :

Bonjour

a. B = x² + 2/3x

B = (- 2)² + 2/3 * (- 2)

B = 4 - 4/3

B = 12/3 - 4/3

B = 8/3

b. B = x² + 2/3x

B = 1/3² + 2/3 * 1/3

B = 1/9 + 2/9

B = 3/9

B = (3 * 1) / (3 x 3)

B = 1/3.

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