2* (2x-6) + 8x(4-3x) comment résoudre cette équation

Bjr

Factorisation :

= 2×(2x-6) + 8x(4-3x)

= 2(2x-6+4x×(4-3x))

= 2(2x-6+16x-12x²)

= 2(18x-6-12x²)

= 2×6(3x-1-2x²)

= 2×6(-2x²+3x-1)

= 2×6(-2x²+2x+x-1)

= 2×6(-2x×(x-1)+x-1)

= 2×6(x-1)×(-2x+1)

= 12(x-1)×(-2x+1)

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