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Sagot :

VINS

bonjour

x + x = 2 x

x * x = x²

2 x + x = 3 x

2 x * x = 2 x²

0 * x = 0

0 + x = x

5 x * 6 x = 30 x²

4 *x * 5 = 20 x

x * x + x = x² + x

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