bonjour, factoriser au maximum : 4x^2 - 12x - 16. merci d'avance :)

Bonjour  Boarward

[tex]4x^2 - 12x - 16=4x^2 -16x+4x -16 \\\\4x^2 - 12x - 16=(4x^2 -16x) +(4x-16) \\\\4x^2 - 12x - 16=4x(x-4)+4(x-4)\\\\4x^2 - 12x - 16=(x-4)(4x+4)\\\\\boxed{4x^2 - 12x - 16=4(x-4)(x+1)}[/tex]

[tex]3x^2 -18x + 24=3x^2 -12x -6x+ 24\\\\3x^2 -18x + 24=(3x^2 -12x) -(6x- 24) \\\\3x^2 -18x + 24=3x(x-4) -6(x- 4) \\\\3x^2 -18x + 24=(x-4)(3x -6) \\\\\boxed{3x^2 -18x + 24=3(x-4)(x -2)}[/tex]