1) 6x + 8 = 32
2) 9x – 5 = -2x + 17
3) 3 + 2(5 – 4x) = 6(-3x + 1)
4) (5x + 2)(-3x + 4) = 0
5) 4x2 – 9 = 0
merci de m’aider svp