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Sagot :

Bonjour

a. A = 4x - 5 pour x = - 3

A = 4 * - 3 - 5

A = - 12 - 5

A = - 17

b. B = - 2 (y + 3) pour y = 4,5

B = - 2 (4,5 + 3)

B = - 2 * 7,5

B = - 15

c. C = 2x² + 3x - 2 pour x = - 5

C = 2 * (- 5)² + 3 * (- 5) - 2

C = 2 * 25 - 15 - 2

C = 50 - 17

C = 33

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