Réponse :
A =x(9x-5)
B = 3(2x+3)
C= x(x+5+3x-2) = x(4x+3)
D = (x-6)(x+4-1+x) =(x-6)(3x+3)
E = (3x-1)(1-3x+1) =(3x-1)(-2x+2) = 2(3x-1)(-x+1)
F = (x+4)²
G = (2-x)(2+x)
H = (3x-5)²
I = (5-6a)(5+6a)
J = (4x-3-1)(4x-3+1) =(4x-4)(4x-2)=8(x-1)(2x-1)
Explications étape par étape :
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Réponse :
A =x(9x-5)
B = 3(2x+3)
C= x(x+5+3x-2) = x(4x+3)
D = (x-6)(x+4-1+x) =(x-6)(3x+3)
E = (3x-1)(1-3x+1) =(3x-1)(-2x+2) = 2(3x-1)(-x+1)
F = (x+4)²
G = (2-x)(2+x)
H = (3x-5)²
I = (5-6a)(5+6a)
J = (4x-3-1)(4x-3+1) =(4x-4)(4x-2)=8(x-1)(2x-1)
Explications étape par étape :