Salut,
1. 6x² + 13x = x(6x + 13)
2. -3x² + 9 = 3(-x² + 3)
3. 5x - 2x² = x(5 - 2x)
4. 6x² + 12x = 6x(x + 2)
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Salut,
1. 6x² + 13x = x(6x + 13)
2. -3x² + 9 = 3(-x² + 3)
3. 5x - 2x² = x(5 - 2x)
4. 6x² + 12x = 6x(x + 2)