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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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