Il faut respudre les equations svp

Bonjour,

2x(4x -5) = 0

Solutions :

2x = 0 => x = 0

4x -5 = 0 => 4x = 5 => x = 5/4

(3-2n)(n+4)= 0

Solutions :

3-2n = 0 => 3 = 2n => n = 3/2

n + 4 = 0 => n = -4