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Exercie 1
1) calculer les expression suivantes pour x = 3. A=x²+7
B= 4(5x-7)+4

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MAROUARSN

A=x²+7

[tex] = {3}^{2} + 7 \\ = 9 + 7 \\ = 16[/tex]

B=4(5x-7)+4

[tex] = 4(5 \times 3 - 7) + 4 \\ =4(15 - 7) + 4 \\ = 4 \times 8 + 4 \\ = 32 + 4 \\ = 36[/tex]