Svp aidez moi pour ce devoir de maths svp Factoriser les expressions suivantes

Bonsoir

A = ( x + 4 )²

B = ( 7 x - 1 )²

C =  ( 2 x + 3 ) ²

D = ( x + 1 - 5 ) ( x + 1 + 5 ) = ( x - 4 ) ( x + 6 )

Bonsoir,

Factoriser :

A = x²+8x+16

A = x²+2×x×4+16

A = x²+2×x×4+4²

A = (x+4)²

D = 49x²-14x+1

D = 7²x²-14x+1

D = 7²x²-2×7x×1+1

D = 7²x²-2×7x×1+1²

D = (7x)²-2×7x×1+1²

D = (7x-1)²

G = 4x²+9+12x

G = 4x²+12x+9

G = (2x+3)²

J = (x+1)²-25

J = (x+1-5)(x+1+5)

J = (x-4)(x+6)

Bonne soirée.