FATIMA891 FATIMA891 Mathématiques Answered exercice 56:b. 5x(4-x)=0c.(x+3)²=0exercice 58 :a. 2x (4x-5)=0b.(3-2n)(n+4)=0 exercice 61 :a.x²-4=0 b.x²-6x+9=0exercice 62 :a.4x²-1=0 b.(x-3)²-4=0