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Sagot :

A= 2x FOIS (x+1)

B= (x-2)(x+4)

C= (x+1) (x+2)

D= (3x-2)(3x+2)

E= (x+1)^2

F= (x-3)^2

G= (x-5)(x+5)

A= (x+1)(x+2)+(x+1)(x-2)

A= (x+1) [ ( x+2)+(x-2) ]

A= (x+1) [ 2x ]

A= 2x ( x+1)

B= (x-2)(x+3)-(2-x)

B= (x-2) [ x+3+1]

B= (x-2) [ x+4 ]

C= (x+1)Fois x+2(x+1)

C= (x+1) [ x+2 ]

D= 9x^2 -4

D= 3^2x^2 - 2^2

D= (3x)^2 - 2^2

D= (3x-2)(3x+2)

E= x^2+2x+1

E= (x+1)^2

F= x^2- 6x+9

F= x^2 - 2x FOIS x Fois 3 + 3^2

F= (x-3)^2

G= x^2-25

G= x^2 - 5^2

G= (x-5)(x+5)

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