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Sagot :

Réponse :

Bonsoir,

a. (x + 5)² = x² + 10x + 25

b. (x - 6)² = x² - 12x + 36

c. (2x + 10)² = 4x² + 40x + 100

d. (x + 10)(x - 10) = x² - 100

e. (x + 11)(x - 11) = x² - 121

f. (7x - 1)² = 49x² - 14x + 1

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