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Sagot :

Bonjour

a.

3x + 1 = - 5x + 1/2

3x + 5x = 1/2 - 1

8x = 1/2 - 2/2

16x = - 1

x = - 1/16

b.

9x² - 24x + 16 = 0

(3x - 4)² = 0

3x - 4 = 0

3x = 4

x = 4/3.

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