Bonjour
FACTORISER
(3x+2)²-(6x + 4)+9 x² +12x +4.
= (3x + 2)^2 - 2(3x + 2) + (3x)^2 + 2 * 3x * 2 + 2^2
= (3x + 2)^2 - 2(3x + 2) + (3x + 2)^2
= (3x + 2)(3x + 2 - 2 + 3x + 2)
= (3x + 2)(6x + 2)
= (3x + 2) * 2(3x + 1)
= 2(3x + 2)(3x + 1)
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Bonjour
FACTORISER
(3x+2)²-(6x + 4)+9 x² +12x +4.
= (3x + 2)^2 - 2(3x + 2) + (3x)^2 + 2 * 3x * 2 + 2^2
= (3x + 2)^2 - 2(3x + 2) + (3x + 2)^2
= (3x + 2)(3x + 2 - 2 + 3x + 2)
= (3x + 2)(6x + 2)
= (3x + 2) * 2(3x + 1)
= 2(3x + 2)(3x + 1)