Réponse :
Explications étape par étape
A = 4r +4t = 4 ( r + t)
B = 7z +9z = z( 7 + 9)
C = 3y² + 2y = y ( 3y + 2)
D = 4x(x + 2) + 3(x + 2) = (x + 2) ( 4x +3)
E = -3y(y + 6) + 7(y + 6) = (y + 6) (-3y +7)
F = (x - 1)(5x + 4) + (3 + x )(x - 1) = ( x - 1)( 5x + 4 + 3 + x)
= (x - 1)(6x +7)
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Réponse :
Explications étape par étape
A = 4r +4t = 4 ( r + t)
B = 7z +9z = z( 7 + 9)
C = 3y² + 2y = y ( 3y + 2)
D = 4x(x + 2) + 3(x + 2) = (x + 2) ( 4x +3)
E = -3y(y + 6) + 7(y + 6) = (y + 6) (-3y +7)
F = (x - 1)(5x + 4) + (3 + x )(x - 1) = ( x - 1)( 5x + 4 + 3 + x)
= (x - 1)(6x +7)