Verified answer

Bonjour

résoudre (2x-10)(x+8)>=0

2(x - 5)(x + 8) >> 0

x - 5 = 0

x = 5

x + 8 = 0

x = -8

x..............|-inf.............(-8)...........5.........+inf

x - 5........|.........(-)...............(-)......o......(+)......

x + 8.......|.........(-)........o.....(+)..............(+)......

Ineq.......|..........(+).......o.....(-).....o.......(+).......

x € ]-inf ; -8] U [5 ; +inf[