exercice 2b - Dimension K
correction fiche n°2 (Equations et inéquations). Exercice 1. a. ... (x + 5)(2x + 1) ? (
x + 5)(x ? 7). =(x+5)[(2x+1) ? (x ? 7)] .... 3x ? 7 -2x ? 9. 5x -2. x. e. 5x ? 1 = 7x ? 1. -
2x = 0. x = 0. f. 3x ? 2 + x = 6 + 4x. 4x ? 2 = 6 + 4x ... + 7 < 4x + 2x + 2. x - 6x < 2 - 7
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