Exercice 56: b. 5x(4-x)=0
c.(x+3)²=0
exercice 58 :
a. 2x (4x-5)=0
b.(3-2n)(n+4)=0
exercice 61 :
a.x²-4=0
b.x²-6x+9=0
exercice 62 :
a.4x²-1=0
b.(x-3)²-4=0
c.(x+3)²=0
exercice 58 :
a. 2x (4x-5)=0
b.(3-2n)(n+4)=0
exercice 61 :
a.x²-4=0
b.x²-6x+9=0
exercice 62 :
a.4x²-1=0
b.(x-3)²-4=0