bjr
13a + 39b = 13 * a + 13 * 3b = 13 (a + 3b)
et
14ab + 12ab = 2ab * 7 + 2ab * 6 = 2ab (7 + 6) soit 13 * 2ab
ou 26ab
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bjr
13a + 39b = 13 * a + 13 * 3b = 13 (a + 3b)
et
14ab + 12ab = 2ab * 7 + 2ab * 6 = 2ab (7 + 6) soit 13 * 2ab
ou 26ab