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Second degré : exercices - Xm1 Math

2) x2 +16x+23 = 0. 3) x2 ?11x+28 = 0. 4) x2 +x?1 = 0. 5) ?5x2 +2. ?. 5x?1 = 0. 6)
?4x2 ?x?6 = 0. 7) ?6x2 +23x+4 = 0. 8) 3x2 ?2. ?. 6x+3 = 0. 9) ?. 1. 2 x2 ?. 11. 3.

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