Réponse :
bonjour
Explications étape par étape
ex 2
(4x+4)²
16x²+32x+16
(5x-4)(5x+4)
25x²+20x-20x-16
25x²-16
(6x-3)²
36x²-36x+9
ex 3
A=(4x+4)²-(-x-3)(5x-4)
16x²+32x+16+5x²-4x+15x-12
21x²+43x+4
B=(5x-4)(5x+4)-(6x-3)²
25x²+20x-20x-16-36x²+36x-9
-11x²+36x-25
C=(3x-7)²-(10x+8)²
9x²-42x+49-100x²-160x-64
91x²-202x-15
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Réponse :
bonjour
Explications étape par étape
ex 2
(4x+4)²
16x²+32x+16
(5x-4)(5x+4)
25x²+20x-20x-16
25x²-16
(6x-3)²
36x²-36x+9
ex 3
A=(4x+4)²-(-x-3)(5x-4)
16x²+32x+16+5x²-4x+15x-12
21x²+43x+4
B=(5x-4)(5x+4)-(6x-3)²
25x²+20x-20x-16-36x²+36x-9
-11x²+36x-25
C=(3x-7)²-(10x+8)²
9x²-42x+49-100x²-160x-64
91x²-202x-15
Verified answer
Salut !Voici l’exercice 2