Mathématiques

Question

Bonjour, Svp aidez moi :(
Bonjour, Svp aidez moi :(

2 Réponse

  • A = x² - 16       (identité remarquable)
    A = (x+4)(x-4)

    B = 1 - y²
    B = (1+y)(1-y)

    C = 100x² - 9
    C = (10x+3)(10x-3)

    D = 36 - 81z²
    D = (9z+6)(9z-6)

    E = 4π² - 25
    E = (2π+5)(2π-5)

    F = (t+3)² - 16    
    F = ((t+3)+4)((t+3)-4)

    G = (2x+1)² - 25
    G = ((2x+1)+5)((2x+1)-5)

    H = (3i+7)² - (i+5)²
    H = ((3i+7)+(i+5))((3i+7)-(i+5))

  • A = (x-4)(x+4)

    B =(1-y)(1+y)

    C =(10x-3)(10x+3)

    D =(6-9z)(6+9z)

    E =(2pi-5)(2pi+5)

    F = (t+3-4)(t+3+4)
       = (t-1)(t+7)

    G = (2x+1-5)(2x+1+5)
       = (2x-4)(2x+6)
       = 4(x-2)(x+3)

    H = (3i+7-i-5)(3i+7+i+5)
       = (2i+2)(4i+12)
      on peut encore facto mais je pense que tu dois t'arreter là