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Exercice 2:
Factoriser les expressions suivantes :
x² – 16=
(x + 1)2 - 4 =
(x - 2)² – 9
(3x - 1)2 – 1 =


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INEQUATION

Bonsoir,

Factoriser les expressions suivantes :

x² – 16=  x²-4²= (x-4)(x+4)

(x + 1)² - 4 =  (x+1)²- 2²= (x+1-2)(x+1+2)= (x-1)(x+3)

(x - 2)² – 9 = (x-2)²-3²= (x-2-3)(x-2+3)= (x-5)(x+1)

(3x - 1)² – 1 = (3x-1)²-1²= (3x-1-1)(3x-1+1)= (3x-2)(3x)= 3x(3x-2)

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