Bonsoir pouvez m’aider à résoudre les équations svp merci bcp
1. 8x -7=0
2.x2= 21
3. (x+7)(x-3)= 0
4.(x-4)-(2x +9)=0
5.x2 + 5x -2=x2 - 4x +7
6(x+5)+(x-5)=0
7.(2x+13)(-7x+11)= 0
8.3(7x + 12)+(x+4)(x-4)=x2-1
1. 8x -7=0
2.x2= 21
3. (x+7)(x-3)= 0
4.(x-4)-(2x +9)=0
5.x2 + 5x -2=x2 - 4x +7
6(x+5)+(x-5)=0
7.(2x+13)(-7x+11)= 0
8.3(7x + 12)+(x+4)(x-4)=x2-1
More Questions From This User See All
Lista de comentários
Réponse:
1) x = 7/8
2) x = √21. x = - √21
3) x = 3. x = - 7
4) x = - 13
5) x = 1
6) x = 0
7) x = 11/7. x = - 13/2
8) x = -1