Answer :
[tex]\large \mathfrak{Solution : }[/tex]
let's factorise :
- [tex] {v}^{2} + 2v = 0[/tex]
- [tex]v(v + 2) = 0[/tex]
now, there are two cases :
case 1 :
- [tex]v = 0[/tex]
case 2 :
- [tex]v + 2 = 0[/tex]
- [tex]v = - 2[/tex]
[tex]\large \mathfrak{Solution : }[/tex]
let's factorise :
now, there are two cases :
case 1 :
case 2 :