Sagot :
Réponse :
1) x = 2V2 + V2n - 1
2) x(2x - V3) = 0 => x = 0 ou x = V3/2
3)x² = 36/25 => x = ±6/5
4) (x-1)(3x+4)+ (x-1)(x+1) = 0 => (x-1)(3x+4 + x-1) = 0
=> (x-1)(4x + 3) = 0 => x = 1 ou x = -3/4
bonne soirée
Explications étape par étape
Réponse :
1) x = 2V2 + V2n - 1
2) x(2x - V3) = 0 => x = 0 ou x = V3/2
3)x² = 36/25 => x = ±6/5
4) (x-1)(3x+4)+ (x-1)(x+1) = 0 => (x-1)(3x+4 + x-1) = 0
=> (x-1)(4x + 3) = 0 => x = 1 ou x = -3/4
bonne soirée
Explications étape par étape