Bonjour pourriez-vous m’aider s’il vous plaît donner les solutions de l’équation merci 1/ (5x-10)(3x+7)=0 2/ 5x2+13x=0 3/ (8x-2)(-9x+6)=0 4/ 3x(5-x)=0 5/ 5x(3x-

Bonsoir

1/ (5x-10)(3x+7)=0

5(x - 2)(3x + 7) = 0

x - 2 = 0 ou 3x + 7 = 0

x = 2 ou 3x = -7

x = 2 ou x = -7/3

2/ 5x2+13x=0

x(5x + 13) = 0

x = 0 ou 5x + 13 = 0

x = 0 ou 5x = -13

x = 0 ou x = -13/5

3/ (8x-2)(-9x+6)=0

2(4x - 1) * 3(-3x + 2) = 0

6(4x - 1)(-3x + 2) = 0

4x - 1 = 0 ou -3x + 2 = 0

4x = 1 ou 3x = 2

x = 1/4 ou x = 2/3

4/ 3x(5-x)=0

3x = 0 ou 5 - x = 0

x = 0 ou x = 5

5/ 5x(3x-12)=0

5x * 3(x - 4) = 0

15x(x - 4) = 0

15x = 0 ou x - 4 = 0

x = 0 ou x = 4

6/ (X+2)(x-7)=0

x + 2 = 0 ou x - 7 = 0

x = -2 ou x = 7

7/ (9+3x)(3x-4)=0

3(3 + x)(3x - 4) = 0

3 + x = 0 ou 3x - 4 = 0

x = -3 ou 3x = 4

x = -3 ou x = 4/3

8/ 13x-9=7x+2

13x - 7x = 2 + 9

6x = 11

x = 11/6

9/ 2x+8-4x=7x+5-6x

-2x + 8 = x + 5

8 - 5 = 2x + x

3 = 3x

x = 3/3

x = 1

10/ 2x-3=-9x+6 ? Celle là n’est pas très Claire

2x - 3 # 0

2x # 3

x # 3/2