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Sagot :

HIRONDELLE52

Bonjour,

A = (x + 1)² + (x + 1)(3x + 1)

(x + 1)(x+1)  + (x + 1)(3x + 1)

= (x+1)  (x+1 +3x+1)

= (x+1) ( 4x +2)

B = (x-3)²-(x-3)(4x + 1)

=(x-3) (x-3 -4x -1)

= (x-3) ( -3x -4)

C = (3x-4)(2-x)-(3x-4)²

=  (3x-4) ( 2-x -3x +4)

= (3x-4) ( -4x +6)

MARIEJOE57

Réponse :

bonjour!

Explications étape par étape :

A = (x + 1)² + (x + 1)(3x + 1)

=(x+1)(x+1+3x+1)

=(x+1)(4x+2)

B = (x-3)²-(x-3)(4x + 1)

=(x-3)(x-3-4x-1)

=(x-3)(-3x-4)

C = (3x-4)(2-x)-(3x-4)²

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

=(3x-4)(-4x+6)

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